Exclaimer Outage History

Exclaimer experienced a 16.7-hour outage affecting signature imprinting and portal access across multiple regions due to a Microsoft Azure outage. The incident caused intermittent failures for customers trying to access the Exclaimer Cloud UI and email signature services. Full functionality was restored after Microsoft resolved the underlying Azure infrastructure issues.

Exclaimer experienced an issue where multiple email signatures were being applied to messages, with duplicate signatures appearing even when one was already present. The problem was identified as being caused by changes in Outlook's behavior when emails with signatures were saved as drafts, triggering additional server-side signature applications. The issue was resolved after 360 hours through a combination of Exclaimer's add-in changes and a Microsoft fix.

Exclaimer customers in the MEA and US regions experienced email routing delays and deferrals when sending messages for server-side signature processing, with the issue lasting approximately 297 hours. The problem was identified as occurring outside of Exclaimer's infrastructure during the email routing process from Microsoft's servers, and Exclaimer worked with Microsoft to resolve the underlying connectivity issues. The incident was resolved after extended monitoring confirmed error rates had dropped to minimal levels across both regions.

Some users experienced issues accessing the Exclaimer Portal, with the portal getting stuck on a loading page when attempting to launch. The issue was partial, not affecting all users or subscriptions. Exclaimer engineers identified the root cause and deployed a fix after 71.6 hours, resolving the access problems for affected users.

Exclaimer experienced an 8.9-hour incident where emails failed to route through the service for server-side signature processing, affecting Mail Routing for Office 365 users. The issue was caused by an internal mail-processing component that interfered with message handling under certain conditions. The problematic component was disabled and other coinciding internal changes were rolled back, restoring normal email processing through Exclaimer.

Exclaimer experienced a major issue where email signatures were not being applied to some messages, though mail flow continued normally. Engineers identified the root cause and implemented a fix after approximately 25 hours of investigation. The issue was fully resolved after 68.4 hours following extended monitoring to ensure no further signature failures occurred.

Exclaimer experienced message processing issues in the UK that affected Mail Routing for Office 365 users. The service degradation lasted 9.6 hours before the team identified the root cause and implemented a fix. Mail routing has returned to stable operation and is being monitored.

Exclaimer Cloud experienced setup issues for Microsoft 365 configurations that affected a limited number of customers attempting to onboard the service. The incident impacted the onboarding process for approximately 43.4 hours. The issue was resolved, with re-running the setup serving as a workaround during the incident period.