Sunday April 13, 2025

Summary

From 11:00 PM PDT on April 12, 2025 to 9:20 AM PDT on April 13, 2025, some users may have had issues receiving emails from Slack, such as password reset or two-factor authentication (2FA) emails.

Part of our email delivery infrastructure became temporarily overloaded. We restarted the impacted server and appointed a new server to handle delivery in its place. This restored normal email delivery rates, resolving the issue for all impacted users. 

9:31 PM PST

Resolved

We’ve resolved the delivery issue and receiving emails from Slack is back to full functionality. Thank you very much for your patience while we worked on getting this fix out the door.

10:18 AM PST

Investigating

Users might encounter issues receiving emails from Slack. We apologize for the inconvenience, and will keep you posted as we have more information to share.

9:09 AM PST