Exclaimer experienced a notice incident on September 4, 2025, lasting 1d 3h. The incident has been resolved; the full update timeline is below.
Update timeline
- monitoring Sep 04, 2025, 08:30 AM UTC
Exclaimer Engineers have been monitoring an issue within the Sent Items service that has caused some messages that were sent and had a signature applied to not update within the Sent Items folder for users. The issue looks to be addressed at this time, and we are continuing to monitor for any outstanding impact. If you have any questions or concerns, please don't hesitate to reach out to our support team, who will be happy to help
- resolved Sep 05, 2025, 12:23 PM 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.
- postmortem Sep 23, 2025, 04:13 PM UTC
Issue: Sent Items Update Service Delays Globally Incident Length: 1 hour, 13 Minutes Incident Date: 04/09/2025, UTC 8:17– 09:30 Incident Status: Resolved **Summary** As part of a standard deployment of the Sent Items Update Service offered within Exclaimer Cloud for Office 365, related services failed to start, and signature-imprinted messages were being queued to be updated by the service. This caused a delay in messages within the users sent items folder from reflecting the signature template that was applied to the sent email. All emails routed to Exclaimer would have been delivered as expected and were not impacted by the issue. No messages were lost or would have been unable to be updated during the issue. All messages that required updating were queued, awaiting the service to be available. **Root Cause** An unexpected incompatibility occurred whilst implementing support for both legacy and newer storage queue packages. Resulting in the service being unavailable during the incident. **Mitigation** Once identified, the change was rolled back, reverting to a previous version to allow for the service to resume standard operations. **Incident Timeline** 8:18 – A higher-than-expected error rate was detected during the latest deployment of the Sent Items service 8:20 – Engineering concluded that an issue within the latest deployment was causing the service to fail and began to roll back the change. 8:24 – Exclaimer engineers confirmed the rollback had been completed, and the error rate had dropped drastically 8:25- Engineers continued to monitor the service for any issues or reports of Sent Items not updating in large quantities from customers. 9:30 – Monitoring systems within Exclaimer indicated no further issues, and engineers were able to confirm that queued messages were now being processed. 12:30 - Exclaimer engineers confirmed that all messages had now been processed as expected and the system was continuing to operate as expected.