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Signature 365 Status
Operational
Updated: (BST)
COMPONENTS
MAINTENANCE
ISSUE HISTORY
Components
Portal
Operational
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Australia
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Canada
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Europe
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United Arab Emirates
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United Kingdom
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United States
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Maintenance
No upcoming or ongoing maintenances reported
Issue History
No issues reported.
SMTP server side delay
Resolved

A delay with SMTP server-side injection was raised by our internal alerting system at 18:25 on the 14/5/25

The issue was identified and resolved by our internal dev team by 18:40, with the cause being traced to an SMTP service scalability issue.

All delayed emails were delivered by 19:00, and an update is currently in development to resolve the root cause of this delay.

No system outage was experienced as a result of this and all mail has been successfully delivered.

(BST)
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
Canada region server side signature issue
Investigating

We are currently experiencing an issue with server-side signature injection. Our team is working to identify the root cause and fix the issue. Users may be experiencing delays for emails sending or receiving NDR delivery reports.

Client-side email injection is not affected. Further updates will be posted as the issue is investigated.

(BST)
Resolved

This issue has been resolved. Due to a change in Cloudflare API our certificate renewal process failed resulting in an expired certificate in the Canada region. We apologise for any inconvienience this may have caused.

(BST)
Canada region server side signature issue
Investigating

We are currently experiencing an issue with server-side signature injection. Our team is working to identify the root cause and fix the issue. Users may be experiencing delays for emails sending or receiving NDR delivery reports.

Client-side email injection is not affected. Further updates will be posted as the issue is investigated.

(BST)
Resolved

This issue has been resolved. Due to a change in Cloudflare API our certificate renewal process failed resulting in an expired certificate in the Canada region. We apologise for any inconvienience this may have caused.

(BST)
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
No issues reported.
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