Exclaimer Outage History

Update - 26 Jul 2026, 16:25 BST All services have been fully restored. Database storage and replication are healthy. Data synchronisation (SCIM, HRIS) has resumed normally. No customer data was lost. We apologise for any inconvenience caused.

Update - 24 Jul 2026, 09:30 BST All services have been fully restored across the US region. Email signature delivery is operating normally in both US datacenters following the Azure West US infrastructure outage on 23 July 2026. We apologise for any disruption caused.

A successful change has addressed the issue, including mitigation to prevent the issue from occurring again. Customers should no longer see any error messages or encounter any issues when accessing the Signatures, Campaigns, or Disclaimers tabs. If you are experiencing any issues with the Exclaimer Portal, please raise a support ticket, and our team will be happy to help https://support.exclaimer.com/hc/en-gb/p/raise-ticket

The issue is now resolved and the all mail flow processing is operational

The incident has been resolved by our engineers and mail routing is operational across all regions. Customers may have experience mail delivery delays but these would have been delivered following retries.

Customers are now able to purchase and set up via Microsoft marketplace again. There was a latent configuration issue within our Microsoft tenant that only became a problem recently. We are still investigating what changed Microsoft side that lead to this becoming an issue.

After extended monitoring, Exclaimer engineers are no longer seeing any continued instances of click-tracking links within the impacted regions being flagged by Microsoft Defender at this time. Customers who previously disabled this feature can look to enable click-tracking analytics from within the Exclaimer Cloud portal. If you are continuing to see issues, please don't hesitate to reach out to our support team, who will be able to assist.

This incident has been resolved. Web-hosted images in the signature editor are now loading correctly across all regions. A recent update to the cloud UI's Content Security Policy inadvertently restricted external image sources, causing hosted images to fail to display. The policy has been updated to allow the required image sources, and the fix has been deployed to all production regions. We're monitoring to confirm stability. We apologize for any disruption this caused.

After continued monitoring, we have confirmed the issue is no longer occurring. Servers that were displaying errors have been removed and replaced within our UK region to prevent the issue from reoccurring. If you are still seeing issues with mail flow when using Exclaimer at this time, please reach out to our support team directly, who will be happy to help.

The Azure SQL database in EU2 has been fully restored by Microsoft. EU2 endpoints have been re-enabled and mailflow is balanced. All services are confirmed healthy with no further impact to customers.

Exclaimer Customers using Exclaimer Cloud for Microsoft 365 would have encountered an error when attempting to run the connector setup wizard from the 'Manage Mail Flow' page, causing the wizard to fail to run. This issue would have no impact on customers who have not previously run the Connector Setup wizard for Microsoft 365

This incident has been resolved.

An unexpected bad release of the Exclaimer Cloud Portal was able to be deployed to regions, preventing the Portal from being accessible to allow users to configure signatures or complete the Exclaimer onboarding. Automated rollbacks detected the error and reverted to the previous healthy version. An internal investigation was able to identify the cause of the bad release being able to be deployed to our systems, and further checks have been implemented to prevent future occurrences.

Exclaimer Engineers have been able to release a change to the Add-in at the start of this week, alongside a fix that was released by Microsoft, and the issue no longer looks to be occurring frequently within messages. If you are still seeing duplicate email signatures being applied. Please reach out to our support team, who will be happy to help.

Exclaimer Engineers have identified the cause of the issue and released a fix, and the issue is no longer impacting users who previously reported it. Extended monitoring has not indicated any other outstanding issues at this time. If you are continuing to have issues accessing your Exclaimer subscription, please reach out to our support team, who will be happy to help.

After extended monitoring over the weekend, we have been able to confirm the issue has been resolved and there have been no further errors or missed signatures for our customers. Customers who are continuing to see issues should contact our support team, who will be happy to help investigate any issues you may be seeing.

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.

This incident has been resolved.

This incident has been resolved.

After extended monitoring, our engineers have not seen any further issues stopping customers from accessing our Portal. This weekends planned maintenance work will continue as planned as part of this work will help address the stability of the Portal and improve accessibility for customers in the future. If you have any questions or concerns, please don't hesitate to contact our great support team, who will be happy to help.