Outbound SMTP Service Degraded Performance

Incident Report for MailChannels

Resolved

This has been resolved. All mail flow should be back to normal now.

Posted 3 years ago. Mar 23, 2022 - 15:45 PDT

Identified

We have identified degraded performance in our Mailchannels Cloud SMTP service. You may see more than usual rejections specifically with a "SDNF" error code. We have also identified that this issue is isolated to one of our clusters. We have moved all outbound traffic to the fully working cluster as of 17:15 UTC time.

Our operations team is working to identify the root cause and implement a solution.

We will update here as and when we have more information to share.

Posted 3 years ago. Mar 23, 2022 - 10:30 PDT

This incident affected: Outbound Filtering (SMTP Service).