I am having an issue where emails to specific users internal to internal are being successfully delivered, but [a duplicate is?] also getting stuck in the "SMTP Delivery to mailbox" queue, with the sender getting a "Delivery is delayed to these recipients or groups:" "Remote Server returned '400 4.4.7 Message delayed" This only happens with emails to specific people in the organization, they get the email immediately after being sent, and everyone else works fine. This issue started after we migrated the users mailboxs from Exchange 2007 to Exchange 2013 CU5, we did not notice the issue until we finished moving all user mailboxes to 2013.
Delivery Report of email to affected user:
Delivered
6/30/2014 11:20 AM mail.domain.com
The message was successfully delivered.
Pending
6/30/2014 11:20 AM
The message has been queued on server 'mail.domain.com' since 6/30/2014 11:20:15 AM (UTC-06:00) Central Time (US & Canada). The last attempt to send the message was at 6/30/2014 11:21:09 AM (UTC-06:00) Central Time (US & Canada) and generated the error
'[{LRT=};{LED=432 4.2.0 STOREDRV.Deliver; Agent transient failure during message resubmission[Agent: Mailbox Rules Agent]};{FQDN=};{IP=}]'.
-Strange time stamp
Original message headers:
mail.domain.com (172.22.220.68) with Microsoft SMTP Server (TLS)
id 15.0.913.22; Sun, 29 Jun 2014 21:36:34 -0500
Received: from mail.domain.com ([fe80::1554:6e6f:4ca5:85be]) by
mail.domain.com ([fe80::1554:6e6f:4ca5:85be%12]) with mapi id
15.00.0913.011; Sun, 29 Jun 2014 21:36:34 -0500
Content-Type: application/ms-tnef; name="winmail.dat"
Content-Transfer-Encoding: binary
From: T S <t.s@domain.com>
To: M M <M.M@domain.com>
CC: D M <d.m@domain.com>
Subject: FW: Migration Complete
Thread-Topic: Migration Complete
Thread-Index: Ac+UAzn/W6u8OF7qRG2V93cDeqU24wACDqXL
Date: Sun, 29 Jun 2014 21:36:33 -0500
Message-ID: <d2b28cf4a56c4392befb1a8e98e930b8@mail.domain.com>
References: <9ec933ce7e4f40f4a24b51a6c5f7d7e5@mail.domain.com>
In-Reply-To: <9ec933ce7e4f40f4a24b51a6c5f7d7e5@mail.domain.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach: yes
X-MS-TNEF-Correlator: <d2b28cf4a56c4392befb1a8e98e930b8@mail.domain.com>
MIME-Version: 1.0
X-Originating-IP: [71.170.174.74]
Return-Path: t.s@domain.com
Update 7/2/14:
Checked event viewer, and found that event ID 1051, erroring multiple times per second with message:
"Agent 'Mailbox Rules Agent' caused an unhandled exception 'StoreDriverAgentTransientException: Store Driver Agent was unable to send email.' while handling event 'OnDeliveredMessage'"
Ran Test-MailFlow on my mailbox, and the two know non-working mailboxes, For me it returned as successful, but showed as a Failure on the two other accounts.
The test emails were actually delivered to the user mailboxes even though it shows as a Failure with the Test-MailFlow command:
From Exchange Queue viewer you can see the test emails stuck in retry, with the following information:
Identity: mail\3112\1395864371267
Subject: Test-Mailflow 8f33ae76-fdd9-4528-8e73-5b9f2481a333 66c7004a-6860-44b2-983a-327aa3c9cfec
Internet Message ID: <e345b2afe63f4dec862af08e54fa9f79@mail.domain.com>
From Address: SystemMailbox{658b82cc-efc2-4407-8c92-8303213c63e2}@domain.com
Status: Retry
Size (KB): 8
Message Source Name: SMTP:Default mail
Source IP: 172.22.220.68
SCL: 0
Date Received: 7/1/2014 9:52:12 PM
Expiration Time: 7/3/2014 9:52:12 PM
Last Error: 432 4.2.0 STOREDRV.Deliver; Agent transient failure during message resubmission[Agent: Mailbox Rules Agent]
Queue ID: mail\3112
Recipients: david.m@domain.com;3;3;[{LRT=};{LED=432 4.2.0 STOREDRV.Deliver; Agent transient failure during message resubmission[Agent: Mailbox Rules Agent]};{FQDN=};{IP=}];0;CN=Mailbox Database 2111459242,CN=Databases,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=LCS,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=domain,DC=com;0