Reports of Outbound Delivery Failure Messages
Posted by Andrew Serody on 04 August 2019 10:22 PM

8/4/19 - 11:00pm EDT

Reflexion Engineering has resolved the issue that was causing delivery failures with outbound email flow.

Outbound email flow has returned to normal and will continue to be monitored.

For additional information please see:

We apologize for the inconvenience this has caused.

Sophos Reflexion Support 

8/4/19 - 10:23pm EDT

Reflexion Engineering is aware and currently investigating an issue with the delivery of outbound email. 

The message being reported is 

550-5.7.1 not RFC 5322 compliant:

550-5.7.1 'From' header is missing.

We will provide an update by 11:00pm EDT or as soon as we have additional information. 

Sophos Reflexion Support