Conifgure email settings through user interface

app/Template/config/email.php

@@ -0,0 +1,18 @@
+<div class="page-header">
+    <h2><?= t('Email settings') ?></h2>
+</div>
+<form method="post" action="<?= $this->url->href('ConfigController', 'save', array('redirect' => 'email')) ?>" autocomplete="off">
+    <?= $this->form->csrf() ?>
+
+    <?= $this->form->label(t('Email sender address'), 'mail_sender_address') ?>
+    <?= $this->form->text('mail_sender_address', $values, $errors, array('placeholder="'.MAIL_FROM.'"')) ?>
+
+    <?= $this->form->label(t('Email transport'), 'mail_transport') ?>
+    <?= $this->form->select('mail_transport', $mail_transports, $values, $errors) ?>
+
+    <?= $this->hook->render('template:config:email', array('values' => $values, 'errors' => $errors)) ?>
+
+    <div class="form-actions">
+        <button type="submit" class="btn btn-blue"><?= t('Save') ?></button>
+    </div>
+</form>