Sophos Email customers using IP-based mailflow rule connectors must migrate to certificate-based configuration by March 31st. To see if you're affected Click Here.

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Sophos Central - Email Gateway - Outbound - Stopped working with Office 365

Yesterday 8/7/18 around 5pm EST all of our Outbound email started kicking back. Everyone was receiving NDR's from Office 365. Did something happen system wide with the Email Gateway Product or a change to Office365 that would suddenly cause this behavior.  We had to turn off outbound scanning.



Edited TAGs
[edited by: Raphael Alganes at 10:42 AM (GMT -8) on 2 Feb 2024]