diff --git a/admin/settings_mail.php b/admin/settings_mail.php
index eb0dee02..923739cd 100644
--- a/admin/settings_mail.php
+++ b/admin/settings_mail.php
@@ -1,495 +1,590 @@
-<?php
-require_once "includes/inc_all_admin.php";
- ?>
-
-    <div class="card card-dark">
-        <div class="card-header py-3">
-            <h3 class="card-title"><i class="fas fa-fw fa-envelope mr-2"></i>SMTP Mail Settings <small>(For Sending Email)</small></h3>
-        </div>
-        <div class="card-body">
-            <form action="post.php" method="post" autocomplete="off">
-                <input type="hidden" name="csrf_token" value="<?php echo $_SESSION['csrf_token'] ?>">
-
-                <!-- SMTP Provider -->
-                <div class="form-group">
-                    <label>SMTP Provider</label>
-                    <div class="input-group">
-                        <div class="input-group-prepend">
-                            <span class="input-group-text"><i class="fa fa-fw fa-cloud"></i></span>
-                        </div>
-                        <select class="form-control" name="config_smtp_provider" id="config_smtp_provider">
-                            <option value="" <?php if(empty($config_smtp_provider)) { echo 'selected'; } ?>>None (Disabled)</option>
-                            <option value="standard_smtp" <?php if($config_smtp_provider === 'standard_smtp') { echo 'selected'; } ?>>Standard SMTP (Username/Password)</option>
-                            <option value="google_oauth" <?php if($config_smtp_provider === 'google_oauth') { echo 'selected'; } ?>>Google Workspace (OAuth)</option>
-                            <option value="microsoft_oauth" <?php if($config_smtp_provider === 'microsoft_oauth') { echo 'selected'; } ?>>Microsoft 365 (OAuth)</option>
-                        </select>
-                    </div>
-                    <small class="text-secondary d-block mt-1" id="smtp_provider_hint">
-                        Choose your SMTP provider. OAuth options ignore the SMTP password here.
-                    </small>
-                </div>
-
-
-                <!-- Standard SMTP fields (show only for standard_smtp) -->
-                <div id="smtp_standard_fields">
-                    <div class="form-group">
-                        <label>SMTP Host</label>
-                        <div class="input-group">
-                            <div class="input-group-prepend">
-                                <span class="input-group-text"><i class="fa fa-fw fa-server"></i></span>
-                            </div>
-                            <input type="text" class="form-control" name="config_smtp_host" placeholder="Mail Server Address" value="<?php echo nullable_htmlentities($config_smtp_host); ?>" required>
-                        </div>
-                    </div>
-
-                    <div class="form-group">
-                        <label>SMTP Port</label>
-                        <div class="input-group">
-                            <div class="input-group-prepend">
-                                <span class="input-group-text"><i class="fa fa-fw fa-plug"></i></span>
-                            </div>
-                            <input type="number" min="0" class="form-control" name="config_smtp_port" placeholder="Mail Server Port Number" value="<?php echo intval($config_smtp_port); ?>" required>
-                        </div>
-                    </div>
-
-                    <div class="form-group">
-                        <label>Encryption</label>
-                        <div class="input-group">
-                            <div class="input-group-prepend">
-                                <span class="input-group-text"><i class="fa fa-fw fa-lock"></i></span>
-                            </div>
-                            <select class="form-control" name="config_smtp_encryption">
-                                <option value=''>None</option>
-                                <option <?php if ($config_smtp_encryption == 'tls') { echo "selected"; } ?> value="tls">TLS</option>
-                                <option <?php if ($config_smtp_encryption == 'ssl') { echo "selected"; } ?> value="ssl">SSL</option>
-                            </select>
-                        </div>
-                    </div>
-
-                    <div class="form-group">
-                        <label>SMTP Username</label>
-                        <div class="input-group">
-                            <div class="input-group-prepend">
-                                <span class="input-group-text"><i class="fa fa-fw fa-user"></i></span>
-                            </div>
-                            <input type="text" class="form-control" name="config_smtp_username" placeholder="Username (Leave blank if no auth is required)" value="<?php echo nullable_htmlentities($config_smtp_username); ?>">
-                        </div>
-                    </div>
-
-                    <div class="form-group" id="smtp_password_group">
-                        <div class="form-group">
-                            <label>SMTP Password</label>
-                            <div class="input-group">
-                                <div class="input-group-prepend">
-                                    <span class="input-group-text"><i class="fa fa-fw fa-key"></i></span>
-                                </div>
-                                <input type="password" class="form-control" data-toggle="password" name="config_smtp_password" placeholder="Password (Leave blank if no auth is required)" value="<?php echo nullable_htmlentities($config_smtp_password); ?>" autocomplete="new-password">
-                                <div class="input-group-append">
-                                    <span class="input-group-text"><i class="fa fa-fw fa-eye"></i></span>
-                                </div>
-                            </div>
-                        </div>
-                    </div>
-
-                </div>
-
-                <hr>
-
-                <button type="submit" name="edit_mail_smtp_settings" class="btn btn-primary text-bold"><i class="fas fa-check mr-2"></i>Save</button>
-
-            </form>
-        </div>
-    </div>
-
-    <div class="card card-dark">
-        <div class="card-header py-3">
-            <h3 class="card-title"><i class="fas fa-fw fa-envelope mr-2"></i>IMAP Mail Settings <small>(For Monitoring Ticket Inbox)</small></h3>
-        </div>
-        <div class="card-body">
-            <form action="post.php" method="post" autocomplete="off">
-                <input type="hidden" name="csrf_token" value="<?php echo $_SESSION['csrf_token'] ?>">
-
-                <div class="form-group">
-                    <label>IMAP Provider</label>
-                    <div class="input-group">
-                        <div class="input-group-prepend">
-                            <span class="input-group-text"><i class="fa fa-fw fa-cloud"></i></span>
-                        </div>
-                        <select class="form-control" name="config_imap_provider" id="config_imap_provider">
-                            <option value="" <?php if(empty($config_imap_provider)) { echo 'selected'; } ?>>None (Disabled)</option>
-                            <option value="standard_imap" <?php if($config_imap_provider === 'standard_imap') { echo 'selected'; } ?>>Standard IMAP (Username/Password)</option>
-                            <option value="google_oauth" <?php if($config_imap_provider === 'google_oauth') { echo 'selected'; } ?>>Google Workspace (OAuth)</option>
-                            <option value="microsoft_oauth" <?php if($config_imap_provider === 'microsoft_oauth') { echo 'selected'; } ?>>Microsoft 365 (OAuth)</option>
-                        </select>
-                    </div>
-                    <small class="text-secondary d-block mt-1" id="imap_provider_hint">
-                    Select your mailbox provider. OAuth options ignore the IMAP password here.
-                    </small>
-                </div>
-                <div id="standard_fields" style="display:none;">
-                    <div class="form-group">
-                        <label>IMAP Host</label>
-                        <div class="input-group">
-                            <div class="input-group-prepend">
-                                <span class="input-group-text"><i class="fa fa-fw fa-server"></i></span>
-                            </div>
-                            <input type="text" class="form-control" name="config_imap_host" placeholder="Incoming Mail Server Address (for email to ticket parsing)" value="<?php echo nullable_htmlentities($config_imap_host); ?>">
-                        </div>
-                    </div>
-
-                    <div class="form-group">
-                        <label>IMAP Port</label>
-                        <div class="input-group">
-                            <div class="input-group-prepend">
-                                <span class="input-group-text"><i class="fa fa-fw fa-plug"></i></span>
-                            </div>
-                            <input type="number" min="0" class="form-control" name="config_imap_port" placeholder="Incoming Mail Server Port Number (993)" value="<?php echo intval($config_imap_port); ?>">
-                        </div>
-                    </div>
-
-                    <div class="form-group">
-                        <label>IMAP Encryption</label>
-                        <div class="input-group">
-                            <div class="input-group-prepend">
-                                <span class="input-group-text"><i class="fa fa-fw fa-lock"></i></span>
-                            </div>
-                            <select class="form-control" name="config_imap_encryption">
-                                <option value=''>None</option>
-                                <option <?php if ($config_imap_encryption == 'tls') { echo "selected"; } ?> value="tls">TLS</option>
-                                <option <?php if ($config_imap_encryption == 'ssl') { echo "selected"; } ?> value="ssl">SSL</option>
-                            </select>
-                        </div>
-                    </div>
-                </div>
-
-                <div class='form-group'>
-                    <label>IMAP Username</label>
-                    <div class='input-group'>
-                        <div class='input-group-prepend'>
-                            <span class='input-group-text'><i class='fa fa-fw fa-user'></i></span>
-                        </div>
-                        <input type='text' class='form-control' name='config_imap_username' placeholder='Username (email address)' value="<?php echo nullable_htmlentities($config_imap_username); ?>" required>
-                    </div>
-                </div>
-
-                <div class='form-group' id="imap_password_group">
-                    <label>IMAP Password</label>
-                    <div class='input-group'>
-                        <div class='input-group-prepend'>
-                            <span class='input-group-text'><i class='fa fa-fw fa-key'></i></span>
-                        </div>
-                        <input type='password' class='form-control' data-toggle='password' name='config_imap_password' placeholder='Password (not used for OAuth)' value="<?php echo nullable_htmlentities($config_imap_password); ?>" autocomplete='new-password'>
-                        <div class='input-group-append'>
-                            <span class='input-group-text'><i class='fa fa-fw fa-eye'></i></span>
-                        </div>
-                    </div>
-                </div>
-
-                <!-- OAuth shared fields (show for google_oauth / microsoft_oauth) -->
-                <div id="smtp_oauth_fields" style="display:none;">
-                    <hr>
-                    <h5 class="mb-2">OAuth Settings (shared for IMAP & SMTP)</h5>
-                    <p class="text-secondary" id="oauth_hint">
-                        Configure OAuth credentials for the selected provider.
-                    </p>
-
-                    <div class="form-group">
-                        <label>OAuth Client ID</label>
-                        <div class="input-group">
-                            <div class="input-group-prepend"><span class="input-group-text"><i class="fa fa-fw fa-id-badge"></i></span></div>
-                            <input type="text" class="form-control" name="config_mail_oauth_client_id"
-                                   value="<?php echo nullable_htmlentities($config_mail_oauth_client_id ?? ''); ?>">
-                        </div>
-                    </div>
-
-                    <div class="form-group">
-                        <label>OAuth Client Secret</label>
-                        <div class="input-group">
-                            <div class="input-group-prepend"><span class="input-group-text"><i class="fa fa-fw fa-key"></i></span></div>
-                            <input type="password" class="form-control" data-toggle="password" name="config_mail_oauth_client_secret"
-                                   value="<?php echo nullable_htmlentities($config_mail_oauth_client_secret ?? ''); ?>" autocomplete="new-password">
-                            <div class="input-group-append"><span class="input-group-text"><i class="fa fa-fw fa-eye"></i></span></div>
-                        </div>
-                    </div>
-
-                    <div class="form-group" id="tenant_row" style="display:none;">
-                        <label>Tenant ID (Microsoft 365 only)</label>
-                        <div class="input-group">
-                            <div class="input-group-prepend"><span class="input-group-text"><i class="fa fa-fw fa-building"></i></span></div>
-                            <input type="text" class="form-control" name="config_mail_oauth_tenant_id"
-                                   value="<?php echo nullable_htmlentities($config_mail_oauth_tenant_id ?? ''); ?>">
-                        </div>
-                    </div>
-
-                    <div class="form-group">
-                        <label>Refresh Token</label>
-                        <div class="input-group">
-                            <div class="input-group-prepend"><span class="input-group-text"><i class="fa fa-fw fa-sync-alt"></i></span></div>
-                            <textarea class="form-control" name="config_mail_oauth_refresh_token" rows="2"
-                                      placeholder="Paste refresh token"><?php echo nullable_htmlentities($config_mail_oauth_refresh_token ?? ''); ?></textarea>
-                        </div>
-                    </div>
-
-                    <div class="form-group">
-                        <label>Access Token (optional – will refresh if expired)</label>
-                        <div class="input-group">
-                            <div class="input-group-prepend"><span class="input-group-text"><i class="fa fa-fw fa-shield-alt"></i></span></div>
-                            <textarea class="form-control" name="config_mail_oauth_access_token" rows="2"
-                                      placeholder="Can be left blank; system refreshes using the refresh token"><?php echo nullable_htmlentities($config_mail_oauth_access_token ?? ''); ?></textarea>
-                        </div>
-                        <small class="text-secondary">
-                            Expires at: <?php echo !empty($config_mail_oauth_access_token_expires_at) ? htmlspecialchars($config_mail_oauth_access_token_expires_at) : 'n/a'; ?>
-                        </small>
-                    </div>
-                </div>
-
-                <hr>
-
-                <button type="submit" name="edit_mail_imap_settings" class="btn btn-primary text-bold"><i class="fas fa-check mr-2"></i>Save</button>
-
-            </form>
-        </div>
-    </div>
-
-    <div class="card card-dark">
-        <div class="card-header py-3">
-            <h3 class="card-title"><i class="fas fa-fw fa-paper-plane mr-2"></i>Mail From Configuration</h3>
-        </div>
-        <div class="card-body">
-            <form action="post.php" method="post" autocomplete="off">
-                <input type="hidden" name="csrf_token" value="<?php echo $_SESSION['csrf_token'] ?>">
-
-                <p>Each of the "From Email" Addresses need to be able to send email on behalf of the SMTP user configured above
-                <h5>System Default</h5>
-                <p class="text-secondary">(used for system tasks such as sending share links)</p>
-                <div class="form-group">
-                    <label>From Email</label>
-                    <div class="input-group">
-                        <div class="input-group-prepend">
-                            <span class="input-group-text"><i class="fa fa-fw fa-envelope"></i></span>
-                        </div>
-                        <input type="email" class="form-control" name="config_mail_from_email" placeholder="Email Address (ex noreply@yourcompany.com)" value="<?php echo nullable_htmlentities($config_mail_from_email); ?>">
-                    </div>
-                </div>
-
-                <div class="form-group">
-                    <label>From Name</label>
-                    <div class="input-group">
-                        <div class="input-group-prepend">
-                            <span class="input-group-text"><i class="fa fa-fw fa-tag"></i></span>
-                        </div>
-                        <input type="text" class="form-control" name="config_mail_from_name" placeholder="Name (ex YourCompany)" value="<?php echo nullable_htmlentities($config_mail_from_name); ?>">
-                    </div>
-                </div>
-
-                <h5>Invoices</h5>
-                <p class="text-secondary">(used for when invoice emails are sent)</p>
-
-                <div class="form-group">
-                    <label>From Email</label>
-                    <div class="input-group">
-                        <div class="input-group-prepend">
-                            <span class="input-group-text"><i class="fa fa-fw fa-envelope"></i></span>
-                        </div>
-                        <input type="email" class="form-control" name="config_invoice_from_email" placeholder="Email (ex billing@yourcompany.com)" value="<?php echo nullable_htmlentities($config_invoice_from_email); ?>">
-                    </div>
-                </div>
-
-                <div class="form-group">
-                    <label>From Name</label>
-                    <div class="input-group">
-                        <div class="input-group-prepend">
-                            <span class="input-group-text"><i class="fa fa-fw fa-tag"></i></span>
-                        </div>
-                        <input type="text" class="form-control" name="config_invoice_from_name" placeholder="Name (ex CompanyName Billing)" value="<?php echo nullable_htmlentities($config_invoice_from_name); ?>">
-                    </div>
-                </div>
-
-                <h5>Quotes</h5>
-                <p class="text-secondary">(used for when quote emails are sent)</p>
-
-                <div class="form-group">
-                    <label>From Email</label>
-                    <div class="input-group">
-                        <div class="input-group-prepend">
-                            <span class="input-group-text"><i class="fa fa-fw fa-envelope"></i></span>
-                        </div>
-                        <input type="email" class="form-control" name="config_quote_from_email" placeholder="Email (ex sales@yourcompany.com)" value="<?php echo nullable_htmlentities($config_quote_from_email); ?>">
-                    </div>
-                </div>
-
-                <div class="form-group">
-                    <label>From Name</label>
-                    <div class="input-group">
-                        <div class="input-group-prepend">
-                            <span class="input-group-text"><i class="fa fa-fw fa-tag"></i></span>
-                        </div>
-                        <input type="text" class="form-control" name="config_quote_from_name" placeholder="Name (ex YourCompany Sales)" value="<?php echo nullable_htmlentities($config_quote_from_name); ?>">
-                    </div>
-                </div>
-
-                <h5>Tickets</h5>
-                <p class="text-secondary">(used for when tickets are created and emailed to a client)</p>
-
-                <div class="form-group">
-                    <label>From Email</label>
-                    <div class="input-group">
-                        <div class="input-group-prepend">
-                            <span class="input-group-text"><i class="fa fa-fw fa-envelope"></i></span>
-                        </div>
-                        <input type="email" class="form-control" name="config_ticket_from_email" placeholder="Email (ex support@yourcompany.com)" value="<?php echo nullable_htmlentities($config_ticket_from_email); ?>">
-                    </div>
-                </div>
-
-                <div class="form-group">
-                    <label>From Name</label>
-                    <div class="input-group">
-                        <div class="input-group-prepend">
-                            <span class="input-group-text"><i class="fa fa-fw fa-tag"></i></span>
-                        </div>
-                        <input type="text" class="form-control" name="config_ticket_from_name" placeholder="Name (ex YourCompany Support)" value="<?php echo nullable_htmlentities($config_ticket_from_name); ?>">
-                    </div>
-                </div>
-
-                <hr>
-
-                <button type="submit" name="edit_mail_from_settings" class="btn btn-primary text-bold"><i class="fas fa-check mr-2"></i>Save</button>
-
-            </form>
-        </div>
-    </div>
-
-    <?php if (!empty($config_smtp_host) && !empty($config_smtp_port) && !empty($config_mail_from_email) && !empty($config_mail_from_name)) { ?>
-
-    <div class="card card-dark">
-        <div class="card-header py-3">
-            <h3 class="card-title"><i class="fas fa-fw fa-paper-plane mr-2"></i>Test Email Sending</h3>
-        </div>
-        <div class="card-body">
-            <form action="post.php" method="post" autocomplete="off">
-                <input type="hidden" name="csrf_token" value="<?php echo $_SESSION['csrf_token'] ?>">
-
-                <div class="input-group">
-                    <select class="form-control select2" name="test_email" required>
-                        <option value="">- Select an Email Address to send from -</option>
-                        <?php
-                        if ($config_mail_from_email) {
-                        ?>
-                        <option value="1"><?php echo nullable_htmlentities($config_mail_from_name); ?> (<?php echo nullable_htmlentities($config_mail_from_email); ?>)</option>
-                        <?php } ?>
-
-                        <?php
-                        if ($config_invoice_from_email) {
-                        ?>
-                        <option value="2"><?php echo nullable_htmlentities($config_invoice_from_name); ?> (<?php echo nullable_htmlentities($config_invoice_from_email); ?>)</option>
-                        <?php } ?>
-
-                        <?php
-                        if ($config_quote_from_email) {
-                        ?>
-                        <option value="3"><?php echo nullable_htmlentities($config_quote_from_name); ?> (<?php echo nullable_htmlentities($config_quote_from_email); ?>)</option>
-                        <?php } ?>
-
-                        <?php
-                        if ($config_ticket_from_email) {
-                        ?>
-                        <option value="4"><?php echo nullable_htmlentities($config_ticket_from_name); ?> (<?php echo nullable_htmlentities($config_ticket_from_email); ?>)</option>
-                        <?php } ?>
-
-
-                    </select>
-                    <input type="email" class="form-control " name="email_to" placeholder="Email address to send to">
-                    <div class="input-group-append">
-                        <button type="submit" name="test_email_smtp" class="btn btn-success"><i class="fas fa-fw fa-paper-plane mr-2"></i>Send</button>
-                    </div>
-                </div>
-            </form>
-        </div>
-    </div>
-
-    <?php } ?>
-
-    <?php if (!empty($config_imap_username) && !empty($config_imap_password) && !empty($config_imap_host) && !empty($config_imap_port)) { ?>
-
-    <div class="card card-dark">
-        <div class="card-header py-3">
-            <h3 class="card-title"><i class="fas fa-fw fa-plug mr-2"></i>Test IMAP Connection</h3>
-        </div>
-        <div class="card-body">
-            <form action="post.php" method="post" autocomplete="off">
-                <input type="hidden" name="csrf_token" value="<?php echo $_SESSION['csrf_token'] ?>">
-
-                <div class="input-group-append">
-                    <button type="submit" name="test_email_imap" class="btn btn-success"><i class="fas fa-fw fa-inbox mr-2"></i>Test</button>
-                </div>
-            </form>
-        </div>
-    </div>
-
-    <?php } ?>
-
-<script>
-(function(){
-  function setDisabled(container, disabled){
-    if(!container) return;
-    container.querySelectorAll('input, select, textarea').forEach(el => el.disabled = !!disabled);
-  }
-
-  function wireProvider(selectId, standardWrapId, passwordGroupId, oauthWrapId, tenantRowId, hintId, oauthHintId){
-    const sel   = document.getElementById(selectId);
-    const std   = document.getElementById(standardWrapId);
-    const pwd   = document.getElementById(passwordGroupId);
-    const oauth = document.getElementById(oauthWrapId);
-    const ten   = document.getElementById(tenantRowId);
-    const hint  = document.getElementById(hintId);
-    const ohint = document.getElementById(oauthHintId);
-
-    function toggle(){
-      const v = (sel && sel.value) || '';
-      const isNone  = (v === 'none' || v === '');
-      const isStd   = v === 'standard_smtp' || v === 'standard_imap';
-      const isG     = v === 'google_oauth';
-      const isM     = v === 'microsoft_oauth';
-      const isOAuth = isG || isM;
-
-      if (std)   std.style.display   = isStd ? '' : 'none';
-      if (pwd)   pwd.style.display   = isStd ? '' : 'none';
-      if (oauth) oauth.style.display = isOAuth ? '' : 'none';
-      if (ten)   ten.style.display   = isM ? '' : 'none';
-
-      setDisabled(std,   !isStd);
-      setDisabled(pwd,   !isStd);
-      setDisabled(oauth, !isOAuth);
-
-      if (hint) {
-        hint.textContent = isNone
-          ? 'Disabled.'
-          : isStd
-            ? 'Standard: provide host, port, encryption, username & password.'
-            : isG
-              ? 'Google OAuth: set Client ID/Secret; paste a refresh token; username should be the mailbox email.'
-              : 'Microsoft 365 OAuth: set Client ID/Secret/Tenant; paste a refresh token; username should be the mailbox email.';
-      }
-      if (ohint) {
-        ohint.textContent = isG
-          ? 'Google Workspace OAuth: Client ID/Secret from Google Cloud; Refresh token via consent.'
-          : isM
-            ? 'Microsoft 365 OAuth: Client ID/Secret/Tenant from Entra ID; Refresh token via consent.'
-            : 'Configure OAuth credentials for the selected provider.';
-      }
-    }
-
-    if (sel) { sel.addEventListener('change', toggle); toggle(); }
-  }
-
-  // IMAP (you already have these IDs in your page)
-  wireProvider('config_imap_provider', 'standard_fields', 'imap_password_group',
-               'oauth_fields', 'tenant_row', 'imap_provider_hint', 'oauth_hint');
-
-  // SMTP (the IDs we just added)
-  wireProvider('config_smtp_provider', 'smtp_standard_fields', 'smtp_password_group',
-               'smtp_oauth_fields', 'smtp_tenant_row', 'smtp_provider_hint', 'smtp_oauth_hint');
-})();
-</script>
-
-<?php require_once "../includes/footer.php";
+<?php
+require_once "includes/inc_all_admin.php";
+ ?>
+
+    <div class="card card-dark">
+        <div class="card-header py-3">
+            <h3 class="card-title"><i class="fas fa-fw fa-envelope mr-2"></i>SMTP Mail Settings <small>(For Sending Email)</small></h3>
+        </div>
+        <div class="card-body">
+            <form action="post.php" method="post" autocomplete="off">
+                <input type="hidden" name="csrf_token" value="<?php echo $_SESSION['csrf_token'] ?>">
+
+                <!-- SMTP Provider -->
+                <div class="form-group">
+                    <label>SMTP Provider</label>
+                    <div class="input-group">
+                        <div class="input-group-prepend">
+                            <span class="input-group-text"><i class="fa fa-fw fa-cloud"></i></span>
+                        </div>
+                        <select class="form-control" name="config_smtp_provider" id="config_smtp_provider">
+                            <option value="" <?php if(empty($config_smtp_provider)) { echo 'selected'; } ?>>None (Disabled)</option>
+                            <option value="standard_smtp" <?php if($config_smtp_provider === 'standard_smtp') { echo 'selected'; } ?>>Standard SMTP (Username/Password)</option>
+                            <option value="google_oauth" <?php if($config_smtp_provider === 'google_oauth') { echo 'selected'; } ?>>Google Workspace (OAuth)</option>
+                            <option value="microsoft_oauth" <?php if($config_smtp_provider === 'microsoft_oauth') { echo 'selected'; } ?>>Microsoft 365 (OAuth)</option>
+                        </select>
+                    </div>
+                    <small class="text-secondary d-block mt-1" id="smtp_provider_hint">
+                        Choose your SMTP provider. OAuth options ignore the SMTP password here.
+                    </small>
+                </div>
+
+
+                <!-- Standard SMTP fields (show only for standard_smtp) -->
+                <div id="smtp_standard_fields">
+                    <div class="form-group">
+                        <label>SMTP Host</label>
+                        <div class="input-group">
+                            <div class="input-group-prepend">
+                                <span class="input-group-text"><i class="fa fa-fw fa-server"></i></span>
+                            </div>
+                            <input type="text" class="form-control" name="config_smtp_host" placeholder="Mail Server Address" value="<?php echo nullable_htmlentities($config_smtp_host); ?>" required>
+                        </div>
+                    </div>
+
+                    <div class="form-group">
+                        <label>SMTP Port</label>
+                        <div class="input-group">
+                            <div class="input-group-prepend">
+                                <span class="input-group-text"><i class="fa fa-fw fa-plug"></i></span>
+                            </div>
+                            <input type="number" min="0" class="form-control" name="config_smtp_port" placeholder="Mail Server Port Number" value="<?php echo intval($config_smtp_port); ?>" required>
+                        </div>
+                    </div>
+
+                    <div class="form-group">
+                        <label>Encryption</label>
+                        <div class="input-group">
+                            <div class="input-group-prepend">
+                                <span class="input-group-text"><i class="fa fa-fw fa-lock"></i></span>
+                            </div>
+                            <select class="form-control" name="config_smtp_encryption">
+                                <option value=''>None</option>
+                                <option <?php if ($config_smtp_encryption == 'tls') { echo "selected"; } ?> value="tls">TLS</option>
+                                <option <?php if ($config_smtp_encryption == 'ssl') { echo "selected"; } ?> value="ssl">SSL</option>
+                            </select>
+                        </div>
+                    </div>
+
+                    <div class="form-group">
+                        <label>SMTP Username</label>
+                        <div class="input-group">
+                            <div class="input-group-prepend">
+                                <span class="input-group-text"><i class="fa fa-fw fa-user"></i></span>
+                            </div>
+                            <input type="text" class="form-control" name="config_smtp_username" placeholder="Username (Leave blank if no auth is required)" value="<?php echo nullable_htmlentities($config_smtp_username); ?>">
+                        </div>
+                    </div>
+
+                    <div class="form-group" id="smtp_password_group">
+                        <div class="form-group">
+                            <label>SMTP Password</label>
+                            <div class="input-group">
+                                <div class="input-group-prepend">
+                                    <span class="input-group-text"><i class="fa fa-fw fa-key"></i></span>
+                                </div>
+                                <input type="password" class="form-control" data-toggle="password" name="config_smtp_password" placeholder="Password (Leave blank if no auth is required)" value="<?php echo nullable_htmlentities($config_smtp_password); ?>" autocomplete="new-password">
+                                <div class="input-group-append">
+                                    <span class="input-group-text"><i class="fa fa-fw fa-eye"></i></span>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+
+                </div>
+
+                <hr>
+
+                <button type="submit" name="edit_mail_smtp_settings" class="btn btn-primary text-bold"><i class="fas fa-check mr-2"></i>Save</button>
+
+            </form>
+        </div>
+    </div>
+
+    <div class="card card-dark">
+        <div class="card-header py-3">
+            <h3 class="card-title"><i class="fas fa-fw fa-envelope mr-2"></i>IMAP Mail Settings <small>(For Monitoring Ticket Inbox)</small></h3>
+        </div>
+        <div class="card-body">
+            <form action="post.php" method="post" autocomplete="off">
+                <input type="hidden" name="csrf_token" value="<?php echo $_SESSION['csrf_token'] ?>">
+
+                <div class="form-group">
+                    <label>IMAP Provider</label>
+                    <div class="input-group">
+                        <div class="input-group-prepend">
+                            <span class="input-group-text"><i class="fa fa-fw fa-cloud"></i></span>
+                        </div>
+                        <select class="form-control" name="config_imap_provider" id="config_imap_provider">
+                            <option value="" <?php if(empty($config_imap_provider)) { echo 'selected'; } ?>>None (Disabled)</option>
+                            <option value="standard_imap" <?php if($config_imap_provider === 'standard_imap') { echo 'selected'; } ?>>Standard IMAP (Username/Password)</option>
+                            <option value="google_oauth" <?php if($config_imap_provider === 'google_oauth') { echo 'selected'; } ?>>Google Workspace (OAuth)</option>
+                            <option value="microsoft_oauth" <?php if($config_imap_provider === 'microsoft_oauth') { echo 'selected'; } ?>>Microsoft 365 (OAuth)</option>
+                        </select>
+                    </div>
+                    <small class="text-secondary d-block mt-1" id="imap_provider_hint">
+                    Select your mailbox provider. OAuth options ignore the IMAP password here.
+                    </small>
+                </div>
+                <div id="standard_fields" style="display:none;">
+                    <div class="form-group">
+                        <label>IMAP Host</label>
+                        <div class="input-group">
+                            <div class="input-group-prepend">
+                                <span class="input-group-text"><i class="fa fa-fw fa-server"></i></span>
+                            </div>
+                            <input type="text" class="form-control" name="config_imap_host" placeholder="Incoming Mail Server Address (for email to ticket parsing)" value="<?php echo nullable_htmlentities($config_imap_host); ?>">
+                        </div>
+                    </div>
+
+                    <div class="form-group">
+                        <label>IMAP Port</label>
+                        <div class="input-group">
+                            <div class="input-group-prepend">
+                                <span class="input-group-text"><i class="fa fa-fw fa-plug"></i></span>
+                            </div>
+                            <input type="number" min="0" class="form-control" name="config_imap_port" placeholder="Incoming Mail Server Port Number (993)" value="<?php echo intval($config_imap_port); ?>">
+                        </div>
+                    </div>
+
+                    <div class="form-group">
+                        <label>IMAP Encryption</label>
+                        <div class="input-group">
+                            <div class="input-group-prepend">
+                                <span class="input-group-text"><i class="fa fa-fw fa-lock"></i></span>
+                            </div>
+                            <select class="form-control" name="config_imap_encryption">
+                                <option value=''>None</option>
+                                <option <?php if ($config_imap_encryption == 'tls') { echo "selected"; } ?> value="tls">TLS</option>
+                                <option <?php if ($config_imap_encryption == 'ssl') { echo "selected"; } ?> value="ssl">SSL</option>
+                            </select>
+                        </div>
+                    </div>
+                </div>
+
+                <div class='form-group'>
+                    <label>IMAP Username</label>
+                    <div class='input-group'>
+                        <div class='input-group-prepend'>
+                            <span class='input-group-text'><i class='fa fa-fw fa-user'></i></span>
+                        </div>
+                        <input type='text' class='form-control' name='config_imap_username' placeholder='Username (email address)' value="<?php echo nullable_htmlentities($config_imap_username); ?>" required>
+                    </div>
+                </div>
+
+                <div class='form-group' id="imap_password_group">
+                    <label>IMAP Password</label>
+                    <div class='input-group'>
+                        <div class='input-group-prepend'>
+                            <span class='input-group-text'><i class='fa fa-fw fa-key'></i></span>
+                        </div>
+                        <input type='password' class='form-control' data-toggle='password' name='config_imap_password' placeholder='Password (not used for OAuth)' value="<?php echo nullable_htmlentities($config_imap_password); ?>" autocomplete='new-password'>
+                        <div class='input-group-append'>
+                            <span class='input-group-text'><i class='fa fa-fw fa-eye'></i></span>
+                        </div>
+                    </div>
+                </div>
+
+                <!-- OAuth shared fields (show for google_oauth / microsoft_oauth) -->
+                <div id="smtp_oauth_fields" style="display:none;">
+                    <hr>
+                    <h5 class="mb-2">OAuth Settings (shared for IMAP & SMTP)</h5>
+                    <p class="text-secondary" id="oauth_hint">
+                        Configure OAuth credentials for the selected provider.
+                    </p>
+
+                    <div class="form-group">
+                        <label>OAuth Client ID</label>
+                        <div class="input-group">
+                            <div class="input-group-prepend"><span class="input-group-text"><i class="fa fa-fw fa-id-badge"></i></span></div>
+                            <input type="text" class="form-control" name="config_mail_oauth_client_id"
+                                   value="<?php echo nullable_htmlentities($config_mail_oauth_client_id ?? ''); ?>">
+                        </div>
+                    </div>
+
+                    <div class="form-group">
+                        <label>OAuth Client Secret</label>
+                        <div class="input-group">
+                            <div class="input-group-prepend"><span class="input-group-text"><i class="fa fa-fw fa-key"></i></span></div>
+                            <input type="password" class="form-control" data-toggle="password" name="config_mail_oauth_client_secret"
+                                   value="<?php echo nullable_htmlentities($config_mail_oauth_client_secret ?? ''); ?>" autocomplete="new-password">
+                            <div class="input-group-append"><span class="input-group-text"><i class="fa fa-fw fa-eye"></i></span></div>
+                        </div>
+                    </div>
+
+                    <div class="form-group" id="tenant_row" style="display:none;">
+                        <label>Tenant ID (Microsoft 365 only)</label>
+                        <div class="input-group">
+                            <div class="input-group-prepend"><span class="input-group-text"><i class="fa fa-fw fa-building"></i></span></div>
+                            <input type="text" class="form-control" name="config_mail_oauth_tenant_id"
+                                   value="<?php echo nullable_htmlentities($config_mail_oauth_tenant_id ?? ''); ?>">
+                        </div>
+                    </div>
+
+                    <div class="form-group">
+                        <label>Refresh Token</label>
+                        <div class="input-group">
+                            <div class="input-group-prepend"><span class="input-group-text"><i class="fa fa-fw fa-sync-alt"></i></span></div>
+                            <textarea class="form-control" name="config_mail_oauth_refresh_token" rows="2"
+                                      placeholder="Paste refresh token"><?php echo nullable_htmlentities($config_mail_oauth_refresh_token ?? ''); ?></textarea>
+                        </div>
+                    </div>
+
+                    <div class="form-group">
+                        <label>Access Token (optional – will refresh if expired)</label>
+                        <div class="input-group">
+                            <div class="input-group-prepend"><span class="input-group-text"><i class="fa fa-fw fa-shield-alt"></i></span></div>
+                            <textarea class="form-control" name="config_mail_oauth_access_token" rows="2"
+                                      placeholder="Can be left blank; system refreshes using the refresh token"><?php echo nullable_htmlentities($config_mail_oauth_access_token ?? ''); ?></textarea>
+                        </div>
+                        <small class="text-secondary">
+                            Expires at: <?php echo !empty($config_mail_oauth_access_token_expires_at) ? htmlspecialchars($config_mail_oauth_access_token_expires_at) : 'n/a'; ?>
+                        </small>
+                    </div>
+                </div>
+
+                <?php
+                if (defined('BASE_URL') && !empty(BASE_URL)) {
+                    $mail_oauth_callback_uri = rtrim((string) BASE_URL, '/') . '/admin/oauth_microsoft_mail_callback.php';
+                } else {
+                    $mail_oauth_callback_uri = 'https://' . rtrim((string) $config_base_url, '/') . '/admin/oauth_microsoft_mail_callback.php';
+                }
+                ?>
+
+                <div class="form-group">
+                    <label>Microsoft OAuth Connect (Web)</label>
+                    <div class="input-group">
+                        <div class="input-group-prepend">
+                            <span class="input-group-text"><i class="fa fa-fw fa-link"></i></span>
+                        </div>
+                        <input type="text" class="form-control" readonly value="<?php echo htmlspecialchars($mail_oauth_callback_uri); ?>">
+                        <div class="input-group-append">
+                            <button type="submit" name="oauth_connect_microsoft_mail" class="btn btn-outline-primary">
+                                <i class="fas fa-fw fa-sign-in-alt mr-2"></i>Connect Microsoft 365
+                            </button>
+                        </div>
+                    </div>
+                    <small class="text-secondary">
+                        Add this callback URI in Entra App Registration, then click Connect to authorize and store refresh token automatically.
+                    </small>
+                </div>
+
+                <hr>
+
+                <button type="submit" name="edit_mail_imap_settings" class="btn btn-primary text-bold"><i class="fas fa-check mr-2"></i>Save</button>
+
+            </form>
+        </div>
+    </div>
+
+    <div class="card card-dark">
+        <div class="card-header py-3">
+            <h3 class="card-title"><i class="fas fa-fw fa-paper-plane mr-2"></i>Mail From Configuration</h3>
+        </div>
+        <div class="card-body">
+            <form action="post.php" method="post" autocomplete="off">
+                <input type="hidden" name="csrf_token" value="<?php echo $_SESSION['csrf_token'] ?>">
+
+                <p>Each of the "From Email" Addresses need to be able to send email on behalf of the SMTP user configured above
+                <h5>System Default</h5>
+                <p class="text-secondary">(used for system tasks such as sending share links)</p>
+                <div class="form-group">
+                    <label>From Email</label>
+                    <div class="input-group">
+                        <div class="input-group-prepend">
+                            <span class="input-group-text"><i class="fa fa-fw fa-envelope"></i></span>
+                        </div>
+                        <input type="email" class="form-control" name="config_mail_from_email" placeholder="Email Address (ex noreply@yourcompany.com)" value="<?php echo nullable_htmlentities($config_mail_from_email); ?>">
+                    </div>
+                </div>
+
+                <div class="form-group">
+                    <label>From Name</label>
+                    <div class="input-group">
+                        <div class="input-group-prepend">
+                            <span class="input-group-text"><i class="fa fa-fw fa-tag"></i></span>
+                        </div>
+                        <input type="text" class="form-control" name="config_mail_from_name" placeholder="Name (ex YourCompany)" value="<?php echo nullable_htmlentities($config_mail_from_name); ?>">
+                    </div>
+                </div>
+
+                <h5>Invoices</h5>
+                <p class="text-secondary">(used for when invoice emails are sent)</p>
+
+                <div class="form-group">
+                    <label>From Email</label>
+                    <div class="input-group">
+                        <div class="input-group-prepend">
+                            <span class="input-group-text"><i class="fa fa-fw fa-envelope"></i></span>
+                        </div>
+                        <input type="email" class="form-control" name="config_invoice_from_email" placeholder="Email (ex billing@yourcompany.com)" value="<?php echo nullable_htmlentities($config_invoice_from_email); ?>">
+                    </div>
+                </div>
+
+                <div class="form-group">
+                    <label>From Name</label>
+                    <div class="input-group">
+                        <div class="input-group-prepend">
+                            <span class="input-group-text"><i class="fa fa-fw fa-tag"></i></span>
+                        </div>
+                        <input type="text" class="form-control" name="config_invoice_from_name" placeholder="Name (ex CompanyName Billing)" value="<?php echo nullable_htmlentities($config_invoice_from_name); ?>">
+                    </div>
+                </div>
+
+                <h5>Quotes</h5>
+                <p class="text-secondary">(used for when quote emails are sent)</p>
+
+                <div class="form-group">
+                    <label>From Email</label>
+                    <div class="input-group">
+                        <div class="input-group-prepend">
+                            <span class="input-group-text"><i class="fa fa-fw fa-envelope"></i></span>
+                        </div>
+                        <input type="email" class="form-control" name="config_quote_from_email" placeholder="Email (ex sales@yourcompany.com)" value="<?php echo nullable_htmlentities($config_quote_from_email); ?>">
+                    </div>
+                </div>
+
+                <div class="form-group">
+                    <label>From Name</label>
+                    <div class="input-group">
+                        <div class="input-group-prepend">
+                            <span class="input-group-text"><i class="fa fa-fw fa-tag"></i></span>
+                        </div>
+                        <input type="text" class="form-control" name="config_quote_from_name" placeholder="Name (ex YourCompany Sales)" value="<?php echo nullable_htmlentities($config_quote_from_name); ?>">
+                    </div>
+                </div>
+
+                <h5>Tickets</h5>
+                <p class="text-secondary">(used for when tickets are created and emailed to a client)</p>
+
+                <div class="form-group">
+                    <label>From Email</label>
+                    <div class="input-group">
+                        <div class="input-group-prepend">
+                            <span class="input-group-text"><i class="fa fa-fw fa-envelope"></i></span>
+                        </div>
+                        <input type="email" class="form-control" name="config_ticket_from_email" placeholder="Email (ex support@yourcompany.com)" value="<?php echo nullable_htmlentities($config_ticket_from_email); ?>">
+                    </div>
+                </div>
+
+                <div class="form-group">
+                    <label>From Name</label>
+                    <div class="input-group">
+                        <div class="input-group-prepend">
+                            <span class="input-group-text"><i class="fa fa-fw fa-tag"></i></span>
+                        </div>
+                        <input type="text" class="form-control" name="config_ticket_from_name" placeholder="Name (ex YourCompany Support)" value="<?php echo nullable_htmlentities($config_ticket_from_name); ?>">
+                    </div>
+                </div>
+
+                <hr>
+
+                <button type="submit" name="edit_mail_from_settings" class="btn btn-primary text-bold"><i class="fas fa-check mr-2"></i>Save</button>
+
+            </form>
+        </div>
+    </div>
+
+    <?php
+    $smtp_standard_ready = !empty($config_smtp_host)
+        && !empty($config_smtp_port)
+        && !empty($config_mail_from_email)
+        && !empty($config_mail_from_name);
+
+    $smtp_oauth_ready = ($config_smtp_provider === 'google_oauth' || $config_smtp_provider === 'microsoft_oauth')
+        && !empty($config_mail_from_email)
+        && !empty($config_mail_from_name)
+        && !empty($config_mail_oauth_client_id)
+        && !empty($config_mail_oauth_client_secret)
+        && !empty($config_mail_oauth_refresh_token)
+        && ($config_smtp_provider !== 'microsoft_oauth' || !empty($config_mail_oauth_tenant_id));
+    ?>
+
+    <?php if ($smtp_standard_ready || $smtp_oauth_ready) { ?>
+
+    <div class="card card-dark">
+        <div class="card-header py-3">
+            <h3 class="card-title"><i class="fas fa-fw fa-paper-plane mr-2"></i>Test Email Sending</h3>
+        </div>
+        <div class="card-body">
+            <form action="post.php" method="post" autocomplete="off">
+                <input type="hidden" name="csrf_token" value="<?php echo $_SESSION['csrf_token'] ?>">
+
+                <div class="input-group">
+                    <select class="form-control select2" name="test_email" required>
+                        <option value="">- Select an Email Address to send from -</option>
+                        <?php
+                        if ($config_mail_from_email) {
+                        ?>
+                        <option value="1"><?php echo nullable_htmlentities($config_mail_from_name); ?> (<?php echo nullable_htmlentities($config_mail_from_email); ?>)</option>
+                        <?php } ?>
+
+                        <?php
+                        if ($config_invoice_from_email) {
+                        ?>
+                        <option value="2"><?php echo nullable_htmlentities($config_invoice_from_name); ?> (<?php echo nullable_htmlentities($config_invoice_from_email); ?>)</option>
+                        <?php } ?>
+
+                        <?php
+                        if ($config_quote_from_email) {
+                        ?>
+                        <option value="3"><?php echo nullable_htmlentities($config_quote_from_name); ?> (<?php echo nullable_htmlentities($config_quote_from_email); ?>)</option>
+                        <?php } ?>
+
+                        <?php
+                        if ($config_ticket_from_email) {
+                        ?>
+                        <option value="4"><?php echo nullable_htmlentities($config_ticket_from_name); ?> (<?php echo nullable_htmlentities($config_ticket_from_email); ?>)</option>
+                        <?php } ?>
+
+
+                    </select>
+                    <input type="email" class="form-control " name="email_to" placeholder="Email address to send to">
+                    <div class="input-group-append">
+                        <button type="submit" name="test_email_smtp" class="btn btn-success"><i class="fas fa-fw fa-paper-plane mr-2"></i>Send</button>
+                    </div>
+                </div>
+            </form>
+        </div>
+    </div>
+
+    <?php } ?>
+
+    <?php
+    $imap_standard_ready = !empty($config_imap_username)
+        && !empty($config_imap_password)
+        && !empty($config_imap_host)
+        && !empty($config_imap_port);
+
+    $imap_oauth_ready = ($config_imap_provider === 'google_oauth' || $config_imap_provider === 'microsoft_oauth')
+        && !empty($config_imap_username)
+        && !empty($config_mail_oauth_client_id)
+        && !empty($config_mail_oauth_client_secret)
+        && !empty($config_mail_oauth_refresh_token)
+        && ($config_imap_provider !== 'microsoft_oauth' || !empty($config_mail_oauth_tenant_id));
+    ?>
+
+    <?php if ($imap_standard_ready || $imap_oauth_ready) { ?>
+
+    <div class="card card-dark">
+        <div class="card-header py-3">
+            <h3 class="card-title"><i class="fas fa-fw fa-plug mr-2"></i>Test IMAP Connection</h3>
+        </div>
+        <div class="card-body">
+            <form action="post.php" method="post" autocomplete="off">
+                <input type="hidden" name="csrf_token" value="<?php echo $_SESSION['csrf_token'] ?>">
+
+                <div class="input-group-append">
+                    <button type="submit" name="test_email_imap" class="btn btn-success"><i class="fas fa-fw fa-inbox mr-2"></i>Test</button>
+                </div>
+            </form>
+        </div>
+    </div>
+
+    <?php } ?>
+
+    <?php
+    $oauth_provider_for_test = '';
+    if ($config_imap_provider === 'google_oauth' || $config_imap_provider === 'microsoft_oauth') {
+        $oauth_provider_for_test = $config_imap_provider;
+    } elseif ($config_smtp_provider === 'google_oauth' || $config_smtp_provider === 'microsoft_oauth') {
+        $oauth_provider_for_test = $config_smtp_provider;
+    }
+
+    $oauth_has_required_fields = !empty($oauth_provider_for_test)
+        && !empty($config_mail_oauth_client_id)
+        && !empty($config_mail_oauth_client_secret)
+        && !empty($config_mail_oauth_refresh_token)
+        && ($oauth_provider_for_test !== 'microsoft_oauth' || !empty($config_mail_oauth_tenant_id));
+    ?>
+
+    <?php if ($oauth_has_required_fields) { ?>
+
+    <div class="card card-dark">
+        <div class="card-header py-3">
+            <h3 class="card-title"><i class="fas fa-fw fa-key mr-2"></i>Test OAuth Token Refresh</h3>
+        </div>
+        <div class="card-body">
+            <form action="post.php" method="post" autocomplete="off">
+                <input type="hidden" name="csrf_token" value="<?php echo $_SESSION['csrf_token'] ?>">
+                <input type="hidden" name="oauth_provider" value="<?php echo htmlspecialchars($oauth_provider_for_test); ?>">
+
+                <p class="text-secondary mb-3">
+                    This validates your refresh token and stores a new access token for
+                    <?php echo $oauth_provider_for_test === 'microsoft_oauth' ? 'Microsoft 365' : 'Google Workspace'; ?>.
+                </p>
+
+                <button type="submit" name="test_oauth_token_refresh" class="btn btn-success">
+                    <i class="fas fa-fw fa-sync-alt mr-2"></i>Test OAuth Token Refresh
+                </button>
+            </form>
+        </div>
+    </div>
+
+    <?php } ?>
+
+<script>
+(function(){
+  function setDisabled(container, disabled){
+    if(!container) return;
+    container.querySelectorAll('input, select, textarea').forEach(el => el.disabled = !!disabled);
+  }
+
+  function wireProvider(selectId, standardWrapId, passwordGroupId, oauthWrapId, tenantRowId, hintId, oauthHintId){
+    const sel   = document.getElementById(selectId);
+    const std   = document.getElementById(standardWrapId);
+    const pwd   = document.getElementById(passwordGroupId);
+    const oauth = document.getElementById(oauthWrapId);
+    const ten   = document.getElementById(tenantRowId);
+    const hint  = document.getElementById(hintId);
+    const ohint = document.getElementById(oauthHintId);
+
+    function toggle(){
+      const v = (sel && sel.value) || '';
+      const isNone  = (v === 'none' || v === '');
+      const isStd   = v === 'standard_smtp' || v === 'standard_imap';
+      const isG     = v === 'google_oauth';
+      const isM     = v === 'microsoft_oauth';
+      const isOAuth = isG || isM;
+
+      if (std)   std.style.display   = isStd ? '' : 'none';
+      if (pwd)   pwd.style.display   = isStd ? '' : 'none';
+      if (oauth) oauth.style.display = isOAuth ? '' : 'none';
+      if (ten)   ten.style.display   = isM ? '' : 'none';
+
+      setDisabled(std,   !isStd);
+      setDisabled(pwd,   !isStd);
+      setDisabled(oauth, !isOAuth);
+
+      if (hint) {
+        hint.textContent = isNone
+          ? 'Disabled.'
+          : isStd
+            ? 'Standard: provide host, port, encryption, username & password.'
+            : isG
+              ? 'Google OAuth: set Client ID/Secret; paste a refresh token; username should be the mailbox email.'
+              : 'Microsoft 365 OAuth: set Client ID/Secret/Tenant; paste a refresh token; username should be the mailbox email.';
+      }
+      if (ohint) {
+        ohint.textContent = isG
+          ? 'Google Workspace OAuth: Client ID/Secret from Google Cloud; Refresh token via consent.'
+          : isM
+            ? 'Microsoft 365 OAuth: Client ID/Secret/Tenant from Entra ID; Refresh token via consent.'
+            : 'Configure OAuth credentials for the selected provider.';
+      }
+    }
+
+    if (sel) { sel.addEventListener('change', toggle); toggle(); }
+  }
+
+  // IMAP (you already have these IDs in your page)
+  wireProvider('config_imap_provider', 'standard_fields', 'imap_password_group',
+               'oauth_fields', 'tenant_row', 'imap_provider_hint', 'oauth_hint');
+
+  // SMTP (the IDs we just added)
+  wireProvider('config_smtp_provider', 'smtp_standard_fields', 'smtp_password_group',
+               'smtp_oauth_fields', 'smtp_tenant_row', 'smtp_provider_hint', 'smtp_oauth_hint');
+})();
+</script>
+
+<?php require_once "../includes/footer.php";