Exclaimer incident

Message processing issues in UK

Minor Resolved View vendor source →

Exclaimer experienced a minor incident on March 17, 2026 affecting UK: Server-Side: Mail Routing - Office 365 and UK: Server-Side: Mail Routing - Exchange, lasting 9h 34m. The incident has been resolved; the full update timeline is below.

Started
Mar 17, 2026, 10:59 PM UTC
Resolved
Mar 18, 2026, 08:34 AM UTC
Duration
9h 34m
Detected by Pingoru
Mar 17, 2026, 10:59 PM UTC

Affected components

UK: Server-Side: Mail Routing - Office 365UK: Server-Side: Mail Routing - Exchange

Update timeline

  1. investigating Mar 17, 2026, 10:59 PM UTC

    We are currently investigating this issue.

  2. monitoring Mar 18, 2026, 08:10 AM UTC

    We have identified what was behind the degraded service in the UK and have put a fix in place to remediate the issue. Mail routing has returned to a stable state and we are currently monitoring the situation

  3. resolved Mar 18, 2026, 08:34 AM UTC

    Engineers have confirmed that the previous service alert has been resolved. The service is now back to full health and is working as normal. Thank you for your patience.