M365 outbound not working for some customers

Incident Report for ALCiT

Postmortem

Issue was linked to an expired certificate on an email gateway. Only customers with strict certificate verification were affected.

Posted Aug 23, 2023 - 20:13 EDT

Resolved

This incident has been resolved.

Posted Aug 23, 2023 - 20:12 EDT

Monitoring

A fix has been implemented and we are monitoring the results.

Posted Aug 23, 2023 - 19:34 EDT

Identified

The issue has been identified and a fix is being implemented.

Posted Aug 23, 2023 - 19:13 EDT

This incident affected: Advanced Email Security.