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Out of office / Automatic Office Reponses - Delivery failed


Looking for some help on the following issue.

When an exchange mailbox has an Automatic reply set by outlook, teams, 365 portal etc, the outgoing email from 365 via sophos central to the external sender it fails. These have definitely previously worked. 

Normal email flow (365>sophos central) works as expected with no issues. It is just the auto responses that fail. 

Any help would be greatly appreciated.


Edited TAGs
[edited by: Raphael Alganes at 10:38 AM (GMT -8) on 2 Feb 2024]