Update - We have now contacted the impacted customers directly to confirm that the refund for the duplicate transaction is underway and to provide more information on the issue.
Dec 19, 2025 - 09:26 UTC
Identified - Exclaimer is aware of an error that has resulted in duplicate payments being taken from some customers this month.
We are in the process of refunding all duplicate payments; these should be returned within seven(7) business days.

We apologise for any inconvenience that may have occurred. More information will be provided directly to impacted customers.

Dec 18, 2025 - 10:27 UTC
Australia Operational
90 days ago
100.0 % uptime
Today
AU: Server-Side: Mail Routing - Office 365 Operational
90 days ago
100.0 % uptime
Today
AU: Server-Side: Mail Routing - Exchange Operational
90 days ago
100.0 % uptime
Today
AU: Server-Side: Signature Application Operational
90 days ago
100.0 % uptime
Today
AU: Server-Side: Sent Items Update Operational
90 days ago
100.0 % uptime
Today
AU: Client-Side: Signature Application - Office 365 Operational
90 days ago
100.0 % uptime
Today
AU: Data: User Synchronization Operational
90 days ago
100.0 % uptime
Today
AU: UI: Admin User Interface Operational
90 days ago
100.0 % uptime
Today
AU: UI: New Customer Onboarding Operational
90 days ago
100.0 % uptime
Today
AU: Analytics: Click Tracking Operational
90 days ago
100.0 % uptime
Today
AU: Feedback Operational
90 days ago
100.0 % uptime
Today
Canada Operational
90 days ago
100.0 % uptime
Today
CA: Server-Side: Mail Routing - Office 365 Operational
90 days ago
100.0 % uptime
Today
CA: Server-Side: Mail Routing - Exchange Operational
90 days ago
100.0 % uptime
Today
CA: Server-Side: Signature Application Operational
90 days ago
100.0 % uptime
Today
CA: Server-Side: Sent Items Update Operational
90 days ago
100.0 % uptime
Today
CA: Client Side: Signature Application - Office 365 Operational
90 days ago
100.0 % uptime
Today
CA: Data: User Synchronization Operational
90 days ago
100.0 % uptime
Today
UI: Admin User Interface Operational
90 days ago
100.0 % uptime
Today
UI: New Customer Onboarding Operational
90 days ago
100.0 % uptime
Today
CA: Analytics: Click Tracking Operational
90 days ago
100.0 % uptime
Today
CA: Feedback Operational
90 days ago
100.0 % uptime
Today
Europe Operational
90 days ago
100.0 % uptime
Today
EU: Server-Side: Mail Routing - Office 365 Operational
90 days ago
100.0 % uptime
Today
EU: Server-Side: Mail routing - Google Workspace Operational
90 days ago
100.0 % uptime
Today
EU: Server-Side: Mail Routing - Exchange Operational
90 days ago
100.0 % uptime
Today
EU: Server-Side: Signature Application Operational
90 days ago
100.0 % uptime
Today
EU: Server-Side: Sent Items Update Operational
90 days ago
100.0 % uptime
Today
EU: Client Side: Signature Application - Office 365 Operational
90 days ago
100.0 % uptime
Today
EU: Client Side: Signature Application - Google Workspace Operational
90 days ago
100.0 % uptime
Today
EU: Data: User Synchronization Operational
90 days ago
100.0 % uptime
Today
EU: UI: Admin User Interface Operational
90 days ago
100.0 % uptime
Today
EU: UI: New Customer Onboarding Operational
90 days ago
100.0 % uptime
Today
EU: Analytics: Click Tracking Operational
90 days ago
100.0 % uptime
Today
EU: Feedback Operational
90 days ago
100.0 % uptime
Today
Germany Operational
90 days ago
100.0 % uptime
Today
DE: Server-Side: Mail Routing - Office 365 Operational
90 days ago
100.0 % uptime
Today
DE: Server-Side: Mail Routing - Exchange Operational
90 days ago
100.0 % uptime
Today
DE: Server-Side: Signature Application Operational
90 days ago
100.0 % uptime
Today
DE: Server-Side: Sent Items Update Operational
90 days ago
100.0 % uptime
Today
DE: Client Side: Signature Application - Office 365 Operational
90 days ago
100.0 % uptime
Today
DE: Data: User Synchronization Operational
90 days ago
100.0 % uptime
Today
DE: UI: Admin User Interface Operational
90 days ago
100.0 % uptime
Today
DE: UI: New Customer Onboarding Operational
90 days ago
100.0 % uptime
Today
DE: Analytics: Click Tracking Operational
90 days ago
100.0 % uptime
Today
DE: Feedback Operational
90 days ago
100.0 % uptime
Today
UAE Operational
90 days ago
100.0 % uptime
Today
UAE: Server-Side: Mail Routing - Office 365 Operational
90 days ago
100.0 % uptime
Today
UAE: Server-Side: Mail Routing - Exchange Operational
90 days ago
100.0 % uptime
Today
UAE: Server-Side: Signature Application Operational
90 days ago
100.0 % uptime
Today
UAE: Server-Side: Sent Items Update Operational
90 days ago
100.0 % uptime
Today
UAE: Client Side: Signature Application - Office 365 Operational
90 days ago
100.0 % uptime
Today
UAE: Data: User Synchronization Operational
90 days ago
100.0 % uptime
Today
UAE: UI: Admin User Interface Operational
90 days ago
100.0 % uptime
Today
UAE: UI: New Customer Onboarding Operational
90 days ago
100.0 % uptime
Today
UAE: Analytics: Click Tracking Operational
90 days ago
100.0 % uptime
Today
UAE: Feedback Operational
90 days ago
100.0 % uptime
Today
UK Operational
90 days ago
100.0 % uptime
Today
UK: Server-Side: Mail Routing - Office 365 Operational
90 days ago
100.0 % uptime
Today
UK: Server-Side: Mail Routing - Exchange Operational
90 days ago
100.0 % uptime
Today
UK: Server-Side: Signature Application Operational
90 days ago
100.0 % uptime
Today
UK: Server-Side: Sent Items Update Operational
90 days ago
100.0 % uptime
Today
UK: Client Side: Signature Application - Office 365 Operational
90 days ago
100.0 % uptime
Today
UK: Data: User Synchronization Operational
90 days ago
100.0 % uptime
Today
UK: UI: Admin User Interface Operational
90 days ago
100.0 % uptime
Today
UK: UI: New Customer Onboarding Operational
90 days ago
100.0 % uptime
Today
UK: Analytics: Click Tracking Operational
90 days ago
100.0 % uptime
Today
UK: Feedback Operational
90 days ago
100.0 % uptime
Today
US Operational
90 days ago
100.0 % uptime
Today
US: Server-Side: Mail Routing - Office 365 Operational
90 days ago
100.0 % uptime
Today
US: Server-Side: Mail Routing - Google Workspace Operational
90 days ago
100.0 % uptime
Today
US: Server-Side: Mail Routing - Exchange Operational
90 days ago
100.0 % uptime
Today
US: Server-Side: Signature Application Operational
90 days ago
100.0 % uptime
Today
US: Server-Side: Sent Items Update Operational
90 days ago
100.0 % uptime
Today
US: Client Side: Signature Application - Office 365 Operational
90 days ago
100.0 % uptime
Today
US: Client Side: Signature Application - Google Workspace Operational
90 days ago
100.0 % uptime
Today
US: Data: User Synchronization Operational
90 days ago
100.0 % uptime
Today
US: UI: Admin User Interface Operational
90 days ago
100.0 % uptime
Today
US: UI: New Customer Onboarding Operational
90 days ago
100.0 % uptime
Today
US: Analytics: Click Tracking Operational
90 days ago
100.0 % uptime
Today
US: Feedback Operational
90 days ago
100.0 % uptime
Today
UI: Authentication and Billing Portal Operational
90 days ago
100.0 % uptime
Today
Client-Side: Outlook Add-In Deployment Operational
90 days ago
100.0 % uptime
Today
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.
Average Client Side Duration ?
Fetching
Average Server Side Duration ?
Fetching
Jan 29, 2026

No incidents reported today.

Jan 28, 2026
Resolved - Exclaimer Engineers have successfully resolved the issue and confirmed that there was no impact preventing signatures from being added.

If you are experiencing any issues with signatures not appearing when expected, please reach out to our support team, who will be happy to assist.

Jan 28, 16:23 UTC
Investigating - Exclaimer Engineers are investigating an issue impacting the reporting of signatures applied through the Exclaimer Add-in or Signature Sync system.
Client-side Signatures will continue to be applied as expected to messages at this time

Jan 27, 15:41 UTC
Jan 27, 2026
Completed - The scheduled maintenance has been completed.
Jan 27, 19:10 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jan 27, 18:00 UTC
Update - A correction has been made to the scheduled maintenance time to reflect the correct date of planned work.
Jan 26, 15:26 UTC
Update - We will be undergoing scheduled maintenance during this time.
Jan 26, 15:13 UTC
Scheduled - Exclaimer engineers will be conducting maintenance on the Exclaimer portal (https://portal.exclaimer.com/) to enhance its accessibility and availability for customers worldwide.
During this maintenance period, customers may experience difficulties logging into their subscriptions via the portal. However, please note that signature templates will continue to function normally throughout this time.
If you have any questions or concerns, please reach out to our great support team, who will be more than happy to help answer any questions.

Jan 25, 11:39 UTC
Jan 26, 2026
Resolved - No further issues with mail flow have been identified over the weekend that were caused by this incident. If you are continuing to experience issues with your Exclaimer Subscription, please don't hesitate to reach out, and our team will be more than happy to assist.
Jan 26, 14:33 UTC
Update - We are continuing to monitor for any further issues.
Jan 23, 06:38 UTC
Monitoring - We have confirmed that Microsoft has deployed a fix to address the issue and confirmed resolution for Incident (MO1221364). We are continuing to monitor the service for stability.
Jan 23, 06:32 UTC
Investigating - We are currently investigating an issue affecting email delivery within our Exclaimer services. Email routed through Exchange Online may be impacted due to an ongoing Microsoft incident (MO1221364).
Jan 23, 02:39 UTC
Jan 25, 2026

No incidents reported.

Jan 24, 2026

No incidents reported.

Jan 23, 2026
Jan 22, 2026

No incidents reported.

Jan 21, 2026

No incidents reported.

Jan 20, 2026

No incidents reported.

Jan 19, 2026
Postmortem - Read details
Jan 19, 21:01 UTC
Resolved - This incident has been resolved, and a Postmortem will be provided shortly.
Jan 19, 20:56 UTC
Monitoring - After monitoring mail flow through Exclaimer, we have confirmed there's been no further messages reported as blocked due to the Spamhaus Blocklist since 14:53GMT.

Exclaimer Engineers have reached out to Spamhaus to discuss the issue at this time and to obtain more information on the resulting action that added this IP to the blocklist.

Jan 9, 16:32 UTC
Investigating - Exclaimer Engineers are aware of an ongoing issue where one of our Server IPs looks to have been added to the Spamhaus eXploits Blocklist on multiple occasions.

Spamhaus is advising that the IP has already been removed from the List. Our engineering team is currently investigating the issue for more information.

Jan 9, 14:51 UTC
Jan 18, 2026

No incidents reported.

Jan 17, 2026

No incidents reported.

Jan 16, 2026

No incidents reported.

Jan 15, 2026

No incidents reported.