diff --git a/plugins/kolab/KolabAddressBook.php b/plugins/kolab/KolabAddressBook.php
index 7ade62c11..475325ac9 100644
--- a/plugins/kolab/KolabAddressBook.php
+++ b/plugins/kolab/KolabAddressBook.php
@@ -58,12 +58,12 @@ class KolabAddressBook implements \RainLoop\Providers\AddressBook\AddressBookInt
 		$xCard = null;
 		try {
 			foreach ($oMessage->Attachments() ?: [] as $oAttachment)  {
-				if ('application/vcard+xml' === $oAttachment->MimeType()) {
+				if ('application/vcard+xml' === $oAttachment->ContentType()) {
 					$result = $this->MailClient()->MessageMimeStream(function ($rResource) use (&$xCard) {
 						if (\is_resource($rResource)) {
 							$xCard = \Sabre\VObject\Reader::readXML($rResource);
 						}
-					}, $this->sFolderName, $oMessage->Uid(), $oAttachment->MimeIndex());
+					}, $this->sFolderName, $oMessage->Uid(), $oAttachment->PartID());
 					break;
 				}
 			}
diff --git a/plugins/kolab/index.php b/plugins/kolab/index.php
index be93fb382..46581ee54 100644
--- a/plugins/kolab/index.php
+++ b/plugins/kolab/index.php
@@ -8,7 +8,7 @@ class KolabPlugin extends \RainLoop\Plugins\AbstractPlugin
 		RELEASE  = '2023-01-03',
 		CATEGORY = 'Contacts',
 		DESCRIPTION = 'Use an Address Book of Kolab.',
-		REQUIRED = '2.24.4';
+		REQUIRED = '2.24.5';
 
 	public function Init() : void
 	{
diff --git a/snappymail/v/0.0.0/app/libraries/MailSo/Mail/Message.php b/snappymail/v/0.0.0/app/libraries/MailSo/Mail/Message.php
index 2efde4ad3..70e7c740b 100644
--- a/snappymail/v/0.0.0/app/libraries/MailSo/Mail/Message.php
+++ b/snappymail/v/0.0.0/app/libraries/MailSo/Mail/Message.php
@@ -107,6 +107,16 @@ class Message implements \JsonSerializable
 		return $this->Uid;
 	}
 
+	public function HeaderTimeStampInUTC() : int
+	{
+		return $this->HeaderTimeStampInUTC;
+	}
+
+	public function Attachments() : ?AttachmentCollection
+	{
+		return $this->Attachments;
+	}
+
 	public function Plain() : string
 	{
 		return $this->sPlain;