CodeTwo Outage History

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CodeTwo had 18 outages in the last 2 years totaling 171h 58m of downtime — averaging 0.7 incidents per month.

There were 18 CodeTwo outages since June 25, 2024 totaling 171h 58m of downtime. Each is summarised below — incident details, duration, and resolution information.

Source: https://status.codetwo.com

Minor February 7, 2026

[West US] Delayed email delivery caused by Azure availability issues

Detected by Pingoru
Feb 07, 2026, 08:56 AM UTC
Resolved
Feb 07, 2026, 10:44 AM UTC
Duration
1h 47m
Affected: Mail flow
Timeline · 5 updates
  1. investigating Feb 07, 2026, 08:56 AM UTC

    Microsoft Azure is currently experiencing availability issues in the West US region, which may affect email delivery speed for customers using server-side signature rules. We are currently investigating the problem.

  2. investigating Feb 07, 2026, 09:24 AM UTC

    At this time, we have not received any customer reports related to this issue, but as a precaution, we are failing over to redundant infrastructure within the same region.

  3. identified Feb 07, 2026, 09:34 AM UTC

    After switching over to tertiary infrastructure, Azure is now processing our requests correctly and email delivery speed has returned to normal. Emails that were delayed on the previous two environments should be delivered soon with signatures applied. We are continuing to investigate why the primary Azure resources are unhealthy; however, all new emails are currently being processed through our regional failover services and are being delivered in a timely manner with signatures.

  4. monitoring Feb 07, 2026, 09:49 AM UTC

    The failover infrastructure is operating correctly, and our telemetry indicates that previously delayed emails have now been delivered with signatures applied. The issue appears to be mitigated, however, our 24/7/365 Monitoring Team will continue to closely observe the service. We will switch back to the primary Azure infrastructure once it becomes available. This transition will be transparent to customers and will not cause service interruptions. No customer action is required. We will also work with Microsoft to determine the root cause of the regional service issue.

  5. resolved Feb 07, 2026, 10:44 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor January 22, 2026

[US] Email delivery delays due to Exchange Online Protection unavailability

Detected by Pingoru
Jan 22, 2026, 07:37 PM UTC
Resolved
Jan 23, 2026, 03:50 AM UTC
Duration
8h 12m
Affected: Mail flowMail flowMail flow
Timeline · 5 updates
  1. investigating Jan 22, 2026, 07:37 PM UTC

    We are currently investigating an issue causing email delivery delays for customers whose services are located in the United States data centers. The problem appears to stem from degraded performance of Microsoft Exchange Online Protection (EOP). End users sending emails that receive CodeTwo signatures on the server side (Cloud mode) may experience delivery delays, as Microsoft Exchange Online Protection is not processing these messages in a timely manner. This issue is very likely also affecting other Microsoft 365 users who do not use CodeTwo. We are actively investigating the problem and checking whether we can force a failover to other instances that are not impacted by the EOP outage.

  2. investigating Jan 22, 2026, 07:41 PM UTC

    We are seeing that Canadian customers are also affected by the Microsoft Exchange Online Protection outage.

  3. identified Jan 22, 2026, 07:44 PM UTC

    Microsoft has just published information about the outage on X: “We’re investigating a potential issue impacting multiple Microsoft 365 services, including Outlook, Microsoft Defender, and Microsoft Purview. Further information can be found in the admin center under MO1221364.” https://x.com/msft365status/status/2014422298506285161

  4. identified Jan 22, 2026, 08:20 PM UTC

    Another update from Microsoft on X: "We've identified a portion of service infrastructure in North America that is not processing traffic as expected. We're working to restore the infrastructure to a healthy state to achieve recovery. More information can be found at https://status.cloud.microsoft or under MO1221364 if accessible."

  5. resolved Jan 23, 2026, 03:50 AM UTC

    The fix implemented by the MS Exchange Online team worked and our service is fully operational again. The most recent update from Microsoft: "We’re continuing to see steady improvements in service availability for Exchange Online and Microsoft Teams and our broader recovery efforts remain actively underway. Engineers are further refining load balancing measures to accelerate recovery and are methodically addressing the remaining impacted services."

Read the full incident report →

Minor January 12, 2026

[UK] Sign-in issues due to Azure backend communication problems

Detected by Pingoru
Jan 12, 2026, 12:17 PM UTC
Resolved
Jan 12, 2026, 01:03 PM UTC
Duration
45m
Affected: Signature management (app.codetwo.com)Autoresponder management (app.codetwo.com)
Timeline · 3 updates
  1. investigating Jan 12, 2026, 12:17 PM UTC

    We are currently experiencing a localized backend communication issue between Azure services in the UK region, which affects the ability of some customers to sign in using Microsoft accounts to the Signature Management page (app.codetwo.com) and manage their rules and signatures. All indicators suggest that this is an issue on Microsoft’s side: we have not made any changes today, and the exact same configuration works without interruption across our other nine regions and eighteen datacenters. We are actively investigating the issue. All other services remain fully operational, and email signatures continue to be added as usual. No action is required on your side at this time. Please stay tuned for further updates here.

  2. monitoring Jan 12, 2026, 12:26 PM UTC

    We switched the affected nodes to alternative, healthy resources within the region, which appears to have resolved the issue. We are no longer seeing any sign-in timeouts or errors. We will continue to monitor the situation.

  3. resolved Jan 12, 2026, 01:03 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor October 29, 2025

[Global] Azure performance issues affecting some of CodeTwo apps

Detected by Pingoru
Oct 29, 2025, 04:43 PM UTC
Resolved
Oct 30, 2025, 12:07 AM UTC
Duration
7h 23m
Affected: Signature management (app.codetwo.com)Signature management (app.codetwo.com)Signature management (app.codetwo.com)Signature management (app.codetwo.com)Signature management (app.codetwo.com)Signature management (app.codetwo.com)Signature management (app.codetwo.com)Signature management (app.codetwo.com)Signature management (app.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)
Timeline · 7 updates

Read the full incident report →

Minor October 9, 2025

Degraded performance of the Admin Panel and other apps due to Azure disruptions

Detected by Pingoru
Oct 09, 2025, 10:29 AM UTC
Resolved
Oct 09, 2025, 05:37 PM UTC
Duration
7h 8m
Affected: Signature management (app.codetwo.com)Signature management (app.codetwo.com)Signature management (app.codetwo.com)Signature management (app.codetwo.com)Signature management (app.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)
Timeline · 4 updates
  1. identified Oct 09, 2025, 10:29 AM UTC

    Some of our apps - such as the Admin Panel and the Manage Signatures App - may experience degraded performance, including slow loading times or failure to load entirely. This issue is due to widespread disruptions affecting Microsoft 365 and Azure services. You can track updates via https://x.com/MSFT365Status/status/1976221477859983782 or https://status.cloud.microsoft, although the latter may also be intermittently unavailable as it's hosted by Microsoft. Microsoft has identified its Front Door services as the likely cause, which is also impacting standard Microsoft 365 users. We are actively monitoring the situation on our end. Despite the app loading issues, email signatures continue to be appended correctly, and mail delivery remains unaffected.

  2. identified Oct 09, 2025, 10:41 AM UTC

    We’re seeing that the Azure Front Door Services issues are now also affecting users in the UK and UAE regions. As a result, Microsoft 365 users in these areas may experience intermittent login issues when accessing their M365 resources. Some CodeTwo apps - also hosted on Azure - may be impacted as well, due to the widespread nature of the disruption. Important Reminder: All email signatures are being appended as expected, and we are not observing any issues with mail delivery at this time. You can follow updates on this Microsoft incident via: https://x.com/MSFT365Status/status/1976221477859983782 https://status.cloud.microsoft (Note: this page may also be intermittently unavailable)

  3. monitoring Oct 09, 2025, 01:17 PM UTC

    Microsoft has recovered most of affected resources. We are monitoring the results.

  4. resolved Oct 09, 2025, 05:37 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor September 15, 2025

[Australia] Email delivery delays

Detected by Pingoru
Sep 15, 2025, 11:08 PM UTC
Resolved
Sep 16, 2025, 02:17 AM UTC
Duration
3h 9m
Affected: Mail flow
Timeline · 3 updates
  1. investigating Sep 15, 2025, 11:08 PM UTC

    We are currently investigating an issue with delays in email delivery for messages with server-side signatures sent by users in Australia.

  2. identified Sep 15, 2025, 11:31 PM UTC

    The problem with delays in email delivery appears to be limited to a small subset of customers in Australia who may have experienced degraded performance of Microsoft 365 today. Our services are operating normally and the signatures are imprinted. We're monitoring the situation.

  3. resolved Sep 16, 2025, 02:17 AM UTC

    It looks like the incident affected only a handful of tenants in Australia East, and the overall impact was very limited and not related to CodeTwo. We’re not seeing any issues with our services, so we’re closing this incident. Our 24/7/365 Proactive Monitoring Team will continue to actively monitor the service. If you are experiencing any problems, please feel free to reach out to our Support Team - we’re available around the clock.

Read the full incident report →

Minor August 29, 2025

[Europe] Delay when sending messages from Exchange Online due to Microsoft problems

Detected by Pingoru
Aug 29, 2025, 01:01 PM UTC
Resolved
Aug 29, 2025, 02:54 PM UTC
Duration
1h 52m
Affected: Mail flowMail flowMail flowMail flowMail flow
Timeline · 3 updates
  1. investigating Aug 29, 2025, 01:01 PM UTC

    Microsoft is investigating an issue where some users are experiencing delays when sending emails from Microsoft 365. As a result, messages sent through our system are also affected, since we are part of the same mail pipeline. Please refer to EX1144276 in the admin center for more details. Here’s Microsoft’s status update on X: https://x.com/msft365status/status/1961409977400132058 Microsoft currently states that the issue is limited to Europe.

  2. investigating Aug 29, 2025, 01:07 PM UTC

    Microsoft continues to investigate this issue. Please refer to EX1144276 in the admin center for more details. Here’s Microsoft’s status update on X: https://x.com/msft365status/status/1961409977400132058 All emails processed through CodeTwo are currently being delivered with signatures, although some may experience delays. CodeTwo is operating normally.

  3. resolved Aug 29, 2025, 02:54 PM UTC

    The problem has been resolved by Microsoft. For further information, please check Service health in the Microsoft 365 Admin Center (Incident ID: EX1144276). CodeTwo is operating and has been operating normally. All emails were delivered with signatures attached.

Read the full incident report →

Notice August 25, 2025

[Australia] Email delivery delays linked to Azure node issues

Detected by Pingoru
Aug 25, 2025, 05:32 AM UTC
Resolved
Aug 25, 2025, 06:01 AM UTC
Duration
28m
Affected: Mail flow
Timeline · 2 updates
  1. identified Aug 25, 2025, 05:32 AM UTC

    Microsoft is currently experiencing Azure availability issues across several nodes in Australia. We have switched our infrastructure to healthy instances within the same region. However, some emails that were being processed during the failover are still stuck in the affected node. As a result, messages sent in the last 25 minutes may be delivered with a delay to final recipients. All current messages are being delivered without delay, and all emails include signatures as expected. At present, all services are operating normally, and no action is required on your end. We expect the issue to be resolved within approximately 30 minutes.

  2. resolved Aug 25, 2025, 06:01 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 22, 2025

[Australia] Exchange Online Protection servers may cause delays in email delivery

Detected by Pingoru
May 22, 2025, 05:48 AM UTC
Resolved
May 22, 2025, 09:46 AM UTC
Duration
3h 58m
Affected: Mail flowMail flow
Timeline · 4 updates
  1. identified May 22, 2025, 05:48 AM UTC

    Microsoft is currently experiencing problems with Exchange Online Protection (EOP). EOP servers appear to have degraded performance and are slow to process emails entering and leaving Microsoft 365 tenants. As a result, some messages processed by CodeTwo may also be delayed while they wait for EOP to scan them before being delivered to final recipients. We have reported the issue to Microsoft and are waiting for a resolution. In the meantime, we have scaled up our services to increase the chances of routing emails through EOP servers that are not affected by this problem. What should you do if you're impacted? Inform your users that email delivery might be delayed (usually by just a few minutes or less) and wait for Microsoft to resolve the issue. Please note that this is a Microsoft-side problem, and it also affects users who are not using CodeTwo or any other smart hosts in the affected region. All signatures are added normally.

  2. identified May 22, 2025, 07:31 AM UTC

    Microsoft has confirmed that the issue is on their end. The issue ID is EX1079935. While email delays in Australia are decreasing, we are now seeing the UK region slowly starting to be affected. We anticipated this and have already warmed up failover services to help mitigate the impact as the issue emerges in this region. Our services are continuously retrying to send messages that were previously stuck in queues before reaching the EOP servers so that we can send them through healthy EOP instances. All messages will be delivered with signatures, although some may be delayed.

  3. monitoring May 22, 2025, 08:04 AM UTC

    It looks like Microsoft has resolved the EOP issue. We are no longer observing any email queues before EOP servers, and all messages are being delivered without delays. We will continue to monitor the situation.

  4. resolved May 22, 2025, 09:46 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 18, 2025

[Global] Temporary certificate issue impacting new trial subscriptions

Detected by Pingoru
May 18, 2025, 06:02 AM UTC
Resolved
May 18, 2025, 01:46 PM UTC
Duration
7h 43m
Affected: OnboardingOnboardingOnboardingOnboardingOnboardingOnboardingOnboardingOnboardingOnboarding
Timeline · 3 updates
  1. identified May 18, 2025, 06:02 AM UTC

    There’s a problem with our certificate provider (Sectigo), which is currently unable to create new certificates for some customers trying to start a trial subscription. As a result, new users attempting to sign up for our server-side or combo-mode service won’t be able to complete the setup process until the issue is resolved. All existing subscriptions for existing Customers are unaffected. Signatures are being added as normal. We're monitoring the situation. Our Tech Support team is online - feel free to reach out to them if you have any questions.

  2. monitoring May 18, 2025, 11:42 AM UTC

    The issue seems to be resolved, even though our certificate provider hasn't officially confirmed it yet. Our telemetry shows that all certificates are now being issued correctly. All affected customers should no longer experience any problems. Our Support Team will contact each impacted customer to ensure everything is running smoothly. As always, we will continue to monitor the service 24/7/365.

  3. resolved May 18, 2025, 01:46 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor February 26, 2025

[Global] CodeTwo Admin Panel availability issues

Detected by Pingoru
Feb 26, 2025, 11:49 AM UTC
Resolved
Feb 26, 2025, 12:16 PM UTC
Duration
26m
Affected: Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)
Timeline · 3 updates
  1. investigating Feb 26, 2025, 11:49 AM UTC

    We are currently investigating an issue affecting the availability of the CodeTwo Admin Panel (emailsignatures365.codetwo.com) for some users across all regions. While some users may experience sign in difficulties, repeated attempts to sign in often succeed. All email signatures are being imprinted as usual. Signature editing remains accessible via app.codetwo.com. We appreciate your patience as we work to identify and resolve the issue.

  2. identified Feb 26, 2025, 12:10 PM UTC

    The issue has been identified and a fix is being implemented.

  3. resolved Feb 26, 2025, 12:16 PM UTC

    The incident has been resolved. The root cause appeared to be a problem with Azure AD B2C. Restarting the affected services resolved the issue. We will be working with Microsoft to investigate the cause on their end, and to improve our preparedness for similar incidents in the future.

Read the full incident report →

Minor July 30, 2024

[Global] Microsoft 365 services not available for some users in multiple regions

Detected by Pingoru
Jul 30, 2024, 01:45 PM UTC
Resolved
Jul 30, 2024, 06:16 PM UTC
Duration
4h 30m
Affected: Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)Admin Panel (emailsignatures365.codetwo.com)
Timeline · 3 updates
  1. identified Jul 30, 2024, 01:45 PM UTC

    Microsoft has just reported on their status page (https://azure.status.microsoft/status) that they are experiencing network infrastructure issues in ALL Azure regions. If you are experiencing problems signing in to CodeTwo services at the moment, this is due to the above mentioned problem. As of now, our email signature imprinting services are not affected. We are actively monitoring this case and will keep you updated. Here's the official status from Microsoft: Network Infrastructure - Issues accessing a subset of Microsoft services We are investigating reports of issues connecting to Microsoft services globally. Customers may experience timeouts connecting to Azure services. We have multiple engineering teams engaged to diagnose and resolve the issue. More details will be provided as soon as possible.

  2. monitoring Jul 30, 2024, 02:52 PM UTC

    Microsoft has just reported on their status page (https://azure.status.microsoft/status) that they have implemented networking configuration changes and have performed failovers to alternate networking paths to provide relief. Microsoft's monitoring telemetry shows improvement in service availability, and they are continuing to monitor to ensure full recovery. As of now, our email signature imprinting services are not affected. We are actively monitoring this case and will keep you updated.

  3. resolved Jul 30, 2024, 06:16 PM UTC

    Microsoft is now actively looking into this issue because the problem is on their end and affects connectivity to Azure services. Since this incident is not caused by CodeTwo services or infrastructure, we will mark it as resolved. Please refer to Microsoft’s Azure status page (https://azure.status.microsoft/status) or to issue MO842351 in Microsoft 365 admin center for further info and to monitor the status of their incident.

Read the full incident report →

Minor June 25, 2024

[Europe] Outlook add-ins in Microsoft 365 are not working or working intermittently

Detected by Pingoru
Jun 25, 2024, 01:36 PM UTC
Resolved
Jun 25, 2024, 03:18 PM UTC
Duration
1h 41m
Affected: Outlook add-inOutlook add-inOutlook add-inOutlook add-in
Timeline · 2 updates
  1. investigating Jun 25, 2024, 01:36 PM UTC

    We are investigating a problem where Outlook add-ins in Microsoft 365 are not working or working intermittently. They also disappear from the Microsoft store occasionally. This is a Microsoft issue and it's not limited to CodeTwo since we observe that other add-ins (even those from Microsoft) are also affected. As a result, CodeTwo signatures might not be added in Outlook (desktop, OWA and mobile). Server-side (cloud) signatures are added normally. Only signatures added by the Outlook add-in are affected. We're currently investigating this with Microsoft.

  2. resolved Jun 25, 2024, 03:18 PM UTC

    Microsoft is now actively looking into this issue because the problem is on their end and affects all add-ins, including their own. Since this incident is not related to CodeTwo services or infrastructure, we will mark this incident as resolved. If you have any questions, feel free to contact Microsoft Support or our Technical Support Team: https://www.codetwo.com/company/contact

Read the full incident report →