Issues with sending all emails (login, posts, and billing reminders)

Incident Report for Substack

Resolved

This incident has been resolved. Emails have been successfully retried and sent.

Posted Feb 21, 2022 - 12:40 PST

Monitoring

We have successfully retried the failed email sends and are monitoring for any additional failures

Posted Feb 21, 2022 - 11:45 PST

Identified

Our email delivery service provider is beginning to send emails again. We are retrying the failed emails now.

Posted Feb 21, 2022 - 11:29 PST

Investigating

Our email delivery service provider is partially down and we're failing to send emails as a result. This includes post emails, login emails, and billing related emails.

Once the downstream incident is resolved, we will retry the failed emails.

Posted Feb 21, 2022 - 11:00 PST

This incident affected: Email delivery.