Remove redundant (default) arguments

cron_ticket_email_parser.php

@@ -63,7 +63,7 @@ if ($emails) {
   foreach($emails as $email) {
 
     // Get message details
-    $metadata = imap_fetch_overview($imap, $email,0); // Date, Subject, Size
+    $metadata = imap_fetch_overview($imap, $email); // Date, Subject, Size
     $header = imap_headerinfo($imap, $email); // To get the From as an email, not a contact name
     $message = imap_fetchbody($imap, $email, 1); // Body
 
@@ -201,4 +201,4 @@ if ($emails) {
 
   }
 
-}
+}

functions.php

@@ -525,7 +525,6 @@ function sendSingleEmail($config_smtp_host, $config_smtp_username, $config_smtp_
     $mail->addAddress("$to_email", "$to_name");    // Add a recipient
 
     // Content
-    $mail->isHTML(true);                                  // Set email format to HTML
     $mail->Subject = "$subject";                                // Subject
     $mail->Body    = "$body";                                   // Content