All Systems Operational

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Here you can check the health status of the CodeTwo Email Signatures 365 services in all regions. Visit our website to learn more about the product or contact us if you have any questions.


This page is updated by CodeTwo DevOps Team, who actively monitor all services 24/7/365.

Australia East Operational
Mail flow Operational
Signature adding (rules processing) Operational
Signature management (app.codetwo.com) Operational
Sent Items Update Operational
Admin Panel (emailsignatures365.codetwo.com) Operational
Entra ID data caching Operational
Onboarding Operational
Outlook add-in Operational
Autoresponder management (app.codetwo.com) Operational
Autoresponder sending (rules processing) Operational
Attributes manager (attributes.codetwo.com) Operational
My user info editor (user.codetwo.com) Operational
One-click surveys (ratings counting) Operational
CodeTwo Insights (insights.codetwo.com) Operational
Canada East Operational
Mail flow Operational
Signature adding (rules processing) Operational
Signature management (app.codetwo.com) Operational
Sent Items Update Operational
Admin Panel (emailsignatures365.codetwo.com) Operational
Entra ID data caching Operational
Onboarding Operational
Outlook add-in Operational
Autoresponder management (app.codetwo.com) Operational
Autoresponder sending (rules processing) Operational
Attributes manager (attributes.codetwo.com) Operational
My user info editor (user.codetwo.com) Operational
One-click surveys (ratings counting) Operational
CodeTwo Insights (insights.codetwo.com) Operational
Germany West Central Operational
Mail flow Operational
Signature adding (rules processing) Operational
Signature management (app.codetwo.com) Operational
Sent Items Update Operational
Admin Panel (emailsignatures365.codetwo.com) Operational
Entra ID data caching Operational
Onboarding Operational
Outlook add-in Operational
Autoresponder management (app.codetwo.com) Operational
Autoresponder sending (rules processing) Operational
Attributes manager (attributes.codetwo.com) Operational
My user info editor (user.codetwo.com) Operational
One-click surveys (ratings counting) Operational
CodeTwo Insights (insights.codetwo.com) Operational
North Central US Operational
Mail flow Operational
Signature adding (rules processing) Operational
Signature management (app.codetwo.com) Operational
Sent Items Update Operational
Admin Panel (emailsignatures365.codetwo.com) Operational
Entra ID data caching Operational
Onboarding Operational
Outlook add-in Operational
Autoresponder management (app.codetwo.com) Operational
Autoresponder sending (rules processing) Operational
Attributes manager (attributes.codetwo.com) Operational
My user info editor (user.codetwo.com) Operational
One-click surveys (ratings counting) Operational
CodeTwo Insights (insights.codetwo.com) Operational
North Europe Operational
Mail flow Operational
Signature adding (rules processing) Operational
Signature management (app.codetwo.com) Operational
Sent Items Update Operational
Admin Panel (emailsignatures365.codetwo.com) Operational
Entra ID data caching Operational
Onboarding Operational
Outlook add-in Operational
Autoresponder management (app.codetwo.com) Operational
Autoresponder sending (rules processing) Operational
Attributes manager (attributes.codetwo.com) Operational
My user info editor (user.codetwo.com) Operational
One-click surveys (ratings counting) Operational
CodeTwo Insights (insights.codetwo.com) Operational
West Europe Operational
Mail flow Operational
Signature adding (rules processing) Operational
Signature management (app.codetwo.com) Operational
Sent Items Update Operational
Admin Panel (emailsignatures365.codetwo.com) Operational
Entra ID data caching Operational
Onboarding Operational
Outlook add-in Operational
Autoresponder management (app.codetwo.com) Operational
Autoresponder sending (rules processing) Operational
Attributes manager (attributes.codetwo.com) Operational
My user info editor (user.codetwo.com) Operational
One-click surveys (ratings counting) Operational
CodeTwo Insights (insights.codetwo.com) Operational
West US Operational
Mail flow Operational
Signature adding (rules processing) Operational
Signature management (app.codetwo.com) Operational
Sent Items Update Operational
Admin Panel (emailsignatures365.codetwo.com) Operational
Entra ID data caching Operational
Onboarding Operational
Outlook add-in Operational
Autoresponder management (app.codetwo.com) Operational
Autoresponder sending (rules processing) Operational
Attributes manager (attributes.codetwo.com) Operational
My user info editor (user.codetwo.com) Operational
One-click surveys (ratings counting) Operational
CodeTwo Insights (insights.codetwo.com) Operational
UK South Operational
Mail flow Operational
Signature adding (rules processing) Operational
Signature management (app.codetwo.com) Operational
Sent Items Update Operational
Admin Panel (emailsignatures365.codetwo.com) Operational
Entra ID data caching Operational
Onboarding Operational
Outlook add-in Operational
Autoresponder management (app.codetwo.com) Operational
Autoresponder sending (rules processing) Operational
Attributes manager (attributes.codetwo.com) Operational
My user info editor (user.codetwo.com) Operational
One-click surveys (ratings counting) Operational
CodeTwo Insights (insights.codetwo.com) Operational
UAE North Operational
Mail flow Operational
Signature adding (rules processing) Operational
Signature management (app.codetwo.com) Operational
Sent Items Update Operational
Admin Panel (emailsignatures365.codetwo.com) Operational
Entra ID data caching Operational
Onboarding Operational
Outlook add-in Operational
Autoresponder management (app.codetwo.com) Operational
Autoresponder sending (rules processing) Operational
Attributes manager (attributes.codetwo.com) Operational
My user info editor (user.codetwo.com) Operational
One-click surveys (ratings counting) Operational
CodeTwo Insights (insights.codetwo.com) Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Mar 18, 2026
[Global] Email delivery issues
Resolved - We have confirmed that the situation has returned to normal, and Microsoft has acknowledged that the issue originated on the Microsoft 365 side. For now, we are closing this incident, but our 24/7/365 Monitoring Team will continue to keep a close eye on the service. We will share more details in the post‑mortem once Microsoft provides us with their RCA.
Mar 18, 18:32 UTC
Monitoring - It looks like the issue is no longer occurring, but we are continuing to monitor the situation and are still investigating the root cause.

Here’s a quick summary of events:

1. Some of our mail processing servers were temporarily unreachable, most likely due to an Azure DNS outage. As a result, some emails sent by our customers (using the cloud-mode for signatures) were rejected with a bounce‑back (NDR) by Exchange Online because our mail processing domain could not be resolved at that moment.

2. Some emails still went through. This happened either because they did not hit the Azure DNS issue (not all messages were affected), or because they were queued by Exchange Online for delivery and Azure DNS came back online before the system generated an NDR.

3. Once DNS became available again, our domain was visible and queued messages could be delivered normally.

4. Nothing in this incident occurred within CodeTwo’s systems. The issue happened entirely before any message reached our service pipeline, which is why our service logs did not show any abnormalities.

5. Emails that did not generate an NDR (did not bounce back) can be assumed to have been delivered successfully. Emails that generated an NDR (bounced back) will need to be resent by the original senders.

We are continuing to investigate this issue with Microsoft (who has now confirmed the Exchange Online infrastructure experienced an issue) and are trying to determine why Azure DNS became unavailable for a short period. We'll let you know about the results of that investigation.

All CodeTwo services are operating normally.
Mar 18, 16:46 UTC
Update - Microsoft has acknowledged the issue after receiving reports from multiple organizations. They are investigating on their side as well, but the root cause has not yet been identified. On our side, we are no longer receiving additional reports and all systems appear to be operating normally, but we’ll continue to monitor the situation and carry on with our investigation.
Mar 18, 16:10 UTC
Update - We’re seeing indications that Azure DNS issues could have affected email flow for some customers using CodeTwo services. DNS appears to be ok again, and several previously affected customers have already confirmed successful email delivery. We’re continuing to investigate to rule out any other causes. No configuration changes or updates were made to our services today.
Mar 18, 15:52 UTC
Investigating - We’re investigating an issue affecting email delivery for messages processed by CodeTwo services to apply email signatures. We’re also checking whether this may be related to an Azure DNS problem. Please stay tuned for further updates.
Mar 18, 15:41 UTC
Mar 17, 2026

No incidents reported.

Mar 16, 2026

No incidents reported.

Mar 15, 2026

No incidents reported.

Mar 14, 2026

No incidents reported.

Mar 13, 2026

No incidents reported.

Mar 12, 2026

No incidents reported.

Mar 11, 2026

No incidents reported.

Mar 10, 2026

No incidents reported.

Mar 9, 2026

No incidents reported.

Mar 8, 2026

No incidents reported.

Mar 7, 2026

No incidents reported.

Mar 6, 2026

No incidents reported.

Mar 5, 2026

No incidents reported.

Mar 4, 2026

No incidents reported.

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