550 4.4.7 QUEUE.Expired

Question

I viewed the other link but no help.
Here is my issue, only when sending new meeting requests or invites I get the above mentioned error.
550 4.4.7 QUEUE.Expired
My setup as follows,
Server 2012 , Exchange 2013
I can telnet to the mail.domain.com 25
Again this only happens when i try to send calender requests
Diagnostic information for administrators:
Generating server: domain.local
#550 4.4.7 QUEUE.Expired; message expired ##
Received: from domain.local (10.1.0.232) by
domain.local (10.1.0.232) with Microsoft SMTP  Server (TLS) id 15.0.516.32; Fri, 3 May 2013 12:09:33 +0200 Received: from domain.local
 ([fe80::b564:f085:a8f2:145b]) by domain.local  ([fe80::b564:f085:a8f2:145b%12]) with mapi id 15.00.0516.029; Fri, 3 May 2013  12:09:33
+0200 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: binary From: [email protected]> To: [email protected] Subject:
Online Systems Thread-Topic: Online Systems Thread-Index: Ac5H4f5gxTOOCpaRRAaDWHMdTJxJogAA+uZA Date: Fri, 3 May 2013 12:09:32 +0200 Message-ID: <[email protected]Ltd.local>
Accept-Language: en-US, en-ZA Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: <[email protected]Ltd.local>
MIME-Version: 1.0 X-Originating-IP: [10.1.1.220] Return-Path: [email protected] X-EsetResult: clean, is OK X-EsetId: 1961053D22C734334D265E

Answer 1

Hi
This problem occurs because the email message in the queue expired. In this situation, the sending server tries to relay or deliver the email message. However, the action is not completed before the message expiration time occurs.
From "Understanding Non-Delivery Reports"
http://technet.microsoft.com/en-us/library/bb232118(EXCHG.80).aspx
The message in the queue has expired. The sending server tried to relay or deliver the message, but the action was not completed before the message expiration time occurred. This message can also indicate that a message header limit has been reached on a
remote server, or some other protocol time-out occurred while communicating with the remote server.
This message usually indicates an issue on the receiving server. Check the validity of the recipient address, and determine if the receiving server is configured correctly to receive messages.
You may have to reduce the number of recipients in the message header for the host about which you are receiving this error. If you send the message again, it is placed in the queue again. If the receiving server is available, the message is delivered.
Hope it will help
Cheers
Zi Feng
TechNet Community Support