Fix: IMAP Header Array Handling, Multipart Boundary Fallback, and Robust Date Parsing

src/backend/imap/imap.php

@@ -1318,7 +1318,9 @@ public function GetMessage($folderid, $id, $contentparameters) {
             unset($textBody);
             unset($mail_headers);
 
-            $output->datereceived = isset($message->headers["date"]) ? $this->cleanupDate($message->headers["date"]) : null;
+            $output->datereceived = null;
+            if (isset($message->headers["date"]))
+                $output->datereceived = is_array($message->headers["date"]) ? $message->headers["date"][0] : $message->headers["date"];
 
             if ($is_smime) {
                 // #190, KD 2015-06-04 - Add Encrypted (and possibly signed) to the classifications emitted
@@ -1332,10 +1334,15 @@ public function GetMessage($folderid, $id, $contentparameters) {
             else {
                 $output->messageclass = "IPM.Note";
             }
-            $output->subject = isset($message->headers["subject"]) ? $message->headers["subject"] : "";
+            $output->subject = null;
+            if (isset($message->headers["subject"]))
+                $output->subject = is_array($message->headers["subject"]) ? $message->headers["subject"][0] : $message->headers["subject"];
+
             $output->read = $stat["flags"];
-            $output->from = isset($message->headers["from"]) ? $message->headers["from"] : null;
 
+            $output->from = null;
+            if (isset($message->headers["from"]))
+                $output->from = is_array($message->headers["from"]) ? $message->headers["from"][0] : $message->headers["from"];
             if (isset($message->headers["thread-topic"])) {
                 $output->threadtopic = $message->headers["thread-topic"];
             }

src/include/mimeDecode.php

@@ -347,9 +347,14 @@ function _decode($headers, $body, $default_ctype = 'text/plain')
                 case 'multipart/relative': //#20431 - android
                 case 'multipart/mixed':
                 case 'application/vnd.wap.multipart.related':
-                    if(!isset($content_type['other']['boundary'])){
-                        $this->_error = 'No boundary found for ' . $content_type['value'] . ' part';
-                        return false;
+                    if (!isset($content_type['other']['boundary'])) {
+                        if ($this->_include_bodies) {
+                            $encoding = isset($content_transfer_encoding['value']) ? $content_transfer_encoding['value'] : '7bit';
+                            $charset = isset($content_type['other']['charset']) ? $content_type['other']['charset'] : $this->_charset;
+                            $return->body = $this->_decode_bodies ? $this->_decodeBody($body, $encoding, $charset, false) : $body;
+                        }
+                        $this->_error = 'Boundary missing in part ' . $content_type['value'] . ', content treated as plain text.';
+                        break;
                     }
 
                     $default_ctype = (strtolower($content_type['value']) === 'multipart/digest') ? 'message/rfc822' : 'text/plain';

src/include/z_RFC822.php

@@ -199,6 +199,7 @@ public function parseAddressList($address = null, $default_domain = null, $nest_
 
         if (isset($address))        $this->address        = $address;
         // z-push addition
+	if (is_array($this->address)) $this->address      = $this->address[0];
         if (strlen(trim((string) $this->address)) == 0) return array();
         if (isset($default_domain)) $this->default_domain = $default_domain;
         if (isset($nest_groups))    $this->nestGroups     = $nest_groups;

src/lib/utils/timezoneutil.php

@@ -1319,8 +1319,12 @@ public static function MakeUTCDate($value, $timezone = null) {
             //If there is no timezone set, we use the default timezone
             $tz = timezone_open(date_default_timezone_get());
         }
-        //20110930T090000Z
-        $date = date_create_from_format('Ymd\THis\Z', $value, timezone_open("UTC"));
+        //2025-03-27T130000
+        $date = date_create_from_format('Y-m-d\THis', $value, $tz);
+        if (!$date) {
+            //20110930T090000Z
+            $date = date_create_from_format('Ymd\THis\Z', $value, timezone_open("UTC"));
+        }
         if (!$date) {
             //20110930T090000
             $date = date_create_from_format('Ymd\THis', $value, $tz);
@@ -1331,6 +1335,7 @@ public static function MakeUTCDate($value, $timezone = null) {
         }
         if (!$date) {
             ZLog::Write(LOGLEVEL_ERROR, sprintf("TimezoneUtil::MakeUTCDate(): failed to convert '%s' to date", $value));
+            return false;
         }
         return date_timestamp_get($date);
     }