December 11, 2012

400 4.4.7 The server responded with: 550 5.7.1 Message rejected due to unacceptable attachments. The failure was replaced by a retry response because the message was marked for retry if rejected

Error:

400 4.4.7 The server responded with: 550 5.7.1 Message rejected due to unacceptable attachments. The failure was replaced by a retry response because the message was marked for retry if rejected.


Identity: <servername>\3340\174867

Subject: CRITICAL : mwnysc02 /rmds/log/rvrdmw/rvrdmw.log.status = FAIL: 2012-11-21 17:20:10 rvrdmw: TIB/Rendezvous Error: {ADV_CLASS="ERROR" ADV_SOURCE="SYSTEM" ADV_NAME="DATALOSS.OUTBOUND.PTP" ADV_DESC="dataloss: remote daemon did not acknowledge our transmission" host="10.111.150.210" lost=1 scid=7268}
From Address: <>
Status: Ready
Size (KB): 5
Message Source Name: Journal
Source IP: 255.255.255.255
SCL: 0
Date Received:
Expiration Time:
Last Error: 400 4.4.7 The server responded with: 550 5.7.1 Message rejected due to unacceptable attachments. The failure was replaced by a retry response because the message was marked for retry if rejected.
Queue ID: <servername>\3340
Recipients:  user@domain.com 


Problem:

Your Edge server is blocking messages from your Hub server with the following error:

400 4.4.7 The server responded with: 550 5.7.1 Message rejected due to unacceptable attachments. The failure was replaced by a retry response because the message was marked for retry if rejected.

In this issue it was certain messages to the Edge that were being blocked.


Solution:
Find out the attachment list via the following cmdlet

Get-AttachmentFilterEntry |F

Then run the following cmdlet to disable the Attachment Filter agent

Disable-TransportAgent -Identity "Attachment Filter agent"





Ref: http://social.technet.microsoft.com/Forums/en-US/exchangesvrsecuremessaginglegacy/thread/a979279c-17a0-4414-9862-4f8b37a061f6





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