Microsoft issue: emails from hotmail.com addresses failing SPF

Incident Report for Mesh

Resolved

It looks like Microsoft have now corrected this issue.
Posted Aug 18, 2023 - 17:04 UTC

Investigating

We have received reports that some emails from hotmail.com addresses are being rejected for SPF fails.

Upon investigation, these are correct rejects as they are coming from IP ranges not included in the SPF record for hotmail.com.

This looks like a configuration issue by Microsoft and is not exclusive to Mesh.
Posted Aug 18, 2023 - 08:51 UTC
This incident affected: US (Inbound Email Security) and EU (Inbound Email Security).