CodeTwo incident

[WestUS] Some emails with signatures are temporarily blocked

Minor Resolved View vendor source →

CodeTwo experienced a minor incident on January 25, 2023 affecting Mail flow, lasting 2h 22m. The incident has been resolved; the full update timeline is below.

Started
Jan 25, 2023, 04:56 AM UTC
Resolved
Jan 25, 2023, 07:18 AM UTC
Duration
2h 22m
Detected by Pingoru
Jan 25, 2023, 04:56 AM UTC

Affected components

Mail flow

Update timeline

  1. identified Jan 25, 2023, 04:56 AM UTC

    One of our services in WestUS was accidentally blacklisted at 3:59 AM UTC. We immediately forced a failover to a secondary resource which mitigated the problem at 4:21 AM UTC. Some emails that were sent with server-side signatures during this timeframe might have been delayed. We're currently checking if these emails were sent correctly. At the moment all services are operational. We will be working with Microsoft to understand why this happened, and to prevent any similar situations in the future.

  2. resolved Jan 25, 2023, 07:18 AM UTC

    We confirmed that all emails have been delivered. All services are operational. We apologize for any inconvenience this issue may have caused.