Monitoring - Exclaimer Engineers are continuing to monitor the situation at this time. The rate of messages being deferred due to the connecting server failing to provide the email has dropped substantially as well since Monday.
We are continuing to reach out to Microsoft to discuss the issue and obtain a complete understanding of it, and to confirm that the issue has been addressed.
Apr 08, 2026 - 10:43 UTC
We are continuing to reach out to Microsoft to discuss the issue and obtain a complete understanding of it, and to confirm that the issue has been addressed.
Apr 08, 2026 - 10:43 UTC
Update - Error rates have continued to decrease, and we’re now seeing minimal errors across both the MEA and US regions.
We’re still actively working with Microsoft to better understand the root cause, overall impact, and confirmation of the fix.
If the issue continues for any affected users, disabling the Exclaimer transport (mail flow) rule remains a valid temporary workaround.
Apr 07, 2026 - 01:18 UTC
We’re still actively working with Microsoft to better understand the root cause, overall impact, and confirmation of the fix.
If the issue continues for any affected users, disabling the Exclaimer transport (mail flow) rule remains a valid temporary workaround.
Apr 07, 2026 - 01:18 UTC
Update - We are continuing to work on a fix for this issue.
Apr 06, 2026 - 01:45 UTC
Apr 06, 2026 - 01:45 UTC
Update - We are seeing continued improvements in mail flow performance. We are currently working with Microsoft to confirm whether their fix has been fully deployed.
Error rates have decreased, and we are no longer observing issues in the MEA region. However, some customers in the US region are still experiencing impact.
At this time, the mail flow rule disablement workaround can be safely reverted for customers who previously applied it to avoid delays.
For customers who are still experiencing the issue, or encounter any new occurrences, we recommend disabling the Exclaimer transport rule (mail flow rule) as a temporary workaround.
We will continue monitoring the situation closely and will provide further updates once we receive confirmation from Microsoft.
Apr 06, 2026 - 01:44 UTC
Error rates have decreased, and we are no longer observing issues in the MEA region. However, some customers in the US region are still experiencing impact.
At this time, the mail flow rule disablement workaround can be safely reverted for customers who previously applied it to avoid delays.
For customers who are still experiencing the issue, or encounter any new occurrences, we recommend disabling the Exclaimer transport rule (mail flow rule) as a temporary workaround.
We will continue monitoring the situation closely and will provide further updates once we receive confirmation from Microsoft.
Apr 06, 2026 - 01:44 UTC
Identified - Exclaimer Engineers are continuing to investigate issues affecting customers in the MEA region who are facing delays or deferrals when sending emails.
Our findings indicate that Exclaimer itself is functioning properly in the region, and successful connections are being established for all incoming messages. Occasionally, we notice that our monitoring systems initiate a connection but then disconnect before completing the message transfer. Since these cases don't reach our servers, it suggests that the problem is likely outside of Exclaimer's framework, occurring when the sending email server attempts to route messages.
We have contacted Microsoft to further investigate the situation.
For customers experiencing delays in mail flow, an immediate workaround is to disable the Exchange Mail Flow rules. Despite the delays, we confirm that all messages are eventually being processed by Exclaimer as expected.
Apr 04, 2026 - 14:44 UTC
Our findings indicate that Exclaimer itself is functioning properly in the region, and successful connections are being established for all incoming messages. Occasionally, we notice that our monitoring systems initiate a connection but then disconnect before completing the message transfer. Since these cases don't reach our servers, it suggests that the problem is likely outside of Exclaimer's framework, occurring when the sending email server attempts to route messages.
We have contacted Microsoft to further investigate the situation.
For customers experiencing delays in mail flow, an immediate workaround is to disable the Exchange Mail Flow rules. Despite the delays, we confirm that all messages are eventually being processed by Exclaimer as expected.
Apr 04, 2026 - 14:44 UTC
Investigating - Exclaimer Engineers are investigating a possible issue for customers in the MEA region who are unable to route emails to Exclaimer for Server-Side signatures, with messages being deferred and delayed.
Emails are continuing to be processed. If any possible sending delay needs to be avoided, you can disable the Mail flow rules for Exclaimer Cloud within the Exchange Admin Center.
This does not look to impact all customers within the region. More information will be provided when available.
Apr 04, 2026 - 10:00 UTC
Emails are continuing to be processed. If any possible sending delay needs to be avoided, you can disable the Mail flow rules for Exclaimer Cloud within the Exchange Admin Center.
This does not look to impact all customers within the region. More information will be provided when available.
Apr 04, 2026 - 10:00 UTC
Australia
Operational
AU: Server-Side: Mail Routing - Office 365
Operational
AU: Server-Side: Mail Routing - Exchange
Operational
AU: Server-Side: Signature Application
Operational
AU: Server-Side: Sent Items Update
Operational
AU: Client-Side: Signature Application - Office 365
Operational
AU: Data: User Synchronization
Operational
AU: UI: Admin User Interface
Operational
AU: UI: New Customer Onboarding
Operational
AU: Analytics: Click Tracking
Operational
AU: Feedback
Operational
Canada
Operational
CA: Server-Side: Mail Routing - Office 365
Operational
CA: Server-Side: Mail Routing - Exchange
Operational
CA: Server-Side: Signature Application
Operational
CA: Server-Side: Sent Items Update
Operational
CA: Client Side: Signature Application - Office 365
Operational
CA: Data: User Synchronization
Operational
UI: Admin User Interface
Operational
UI: New Customer Onboarding
Operational
CA: Analytics: Click Tracking
Operational
CA: Feedback
Operational
Europe
Operational
EU: Server-Side: Mail Routing - Office 365
Operational
EU: Server-Side: Mail routing - Google Workspace
Operational
EU: Server-Side: Mail Routing - Exchange
Operational
EU: Server-Side: Signature Application
Operational
EU: Server-Side: Sent Items Update
Operational
EU: Client Side: Signature Application - Office 365
Operational
EU: Client Side: Signature Application - Google Workspace
Operational
EU: Data: User Synchronization
Operational
EU: UI: Admin User Interface
Operational
EU: UI: New Customer Onboarding
Operational
EU: Analytics: Click Tracking
Operational
EU: Feedback
Operational
Germany
Operational
DE: Server-Side: Mail Routing - Office 365
Operational
DE: Server-Side: Mail Routing - Exchange
Operational
DE: Server-Side: Signature Application
Operational
DE: Server-Side: Sent Items Update
Operational
DE: Client Side: Signature Application - Office 365
Operational
DE: Data: User Synchronization
Operational
DE: UI: Admin User Interface
Operational
DE: UI: New Customer Onboarding
Operational
DE: Analytics: Click Tracking
Operational
DE: Feedback
Operational
UAE
Operational
UAE: Server-Side: Mail Routing - Office 365
Operational
UAE: Server-Side: Mail Routing - Exchange
Operational
UAE: Server-Side: Signature Application
Operational
UAE: Server-Side: Sent Items Update
Operational
UAE: Client Side: Signature Application - Office 365
Operational
UAE: Data: User Synchronization
Operational
UAE: UI: Admin User Interface
Operational
UAE: UI: New Customer Onboarding
Operational
UAE: Analytics: Click Tracking
Operational
UAE: Feedback
Operational
UK
Operational
UK: Server-Side: Mail Routing - Office 365
Operational
UK: Server-Side: Mail Routing - Exchange
Operational
UK: Server-Side: Signature Application
Operational
UK: Server-Side: Sent Items Update
Operational
UK: Client Side: Signature Application - Office 365
Operational
UK: Data: User Synchronization
Operational
UK: UI: Admin User Interface
Operational
UK: UI: New Customer Onboarding
Operational
UK: Analytics: Click Tracking
Operational
UK: Feedback
Operational
US
Operational
US: Server-Side: Mail Routing - Office 365
Operational
US: Server-Side: Mail Routing - Google Workspace
Operational
US: Server-Side: Mail Routing - Exchange
Operational
US: Server-Side: Signature Application
Operational
US: Server-Side: Sent Items Update
Operational
US: Client Side: Signature Application - Office 365
Operational
US: Client Side: Signature Application - Google Workspace
Operational
US: Data: User Synchronization
Operational
US: UI: Admin User Interface
Operational
US: UI: New Customer Onboarding
Operational
US: Analytics: Click Tracking
Operational
US: Feedback
Operational
UI: Authentication and Billing Portal
Operational
Client-Side: Outlook Add-In Deployment
Operational
Third-Party: Zoom Meeting Branding
Operational
Zoom Meetings
Operational
Zoom Marketplace
Operational
Zoom REST API
Operational
Zoom Web SDK
Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.