Email Delays in NAM and EMEA Region

We have monitored the service for stability and this incident shall now be closed.

We have identified the cause of the issue and have implemented a fix. Customers should no longer experience delays in sending emails. We will now monitor the service for stability and provide updates as soon as new information becomes available.

Microsoft team have provided an updated SPF record that our engineering team needs to implement on our side. We are working on implementing this build in production environment. The ETA for the fix is 2 hours. Customers may continue to experience issues sending outbound emails while we work on the fix. We will provide further updates as applicable.

We are actively discussing this issue with the Microsoft team. We will provide updates as new information becomes available.

We continue to diagnose this issue and are reviewing all the logs. Customers are also requested to log a case with Microsoft support and inquire about the SPF record failures for [spf.messaging.microsoft.com]. We will provide updates as new information becomes available.

In addition to contacting Microsoft, we are also reviewing all the recent Email Security.cloud changes and so far we do not see any issues with these releases. We will provide updates as new information becomes available.

As per our initial investigation, this issue is impacting customers using Hosted Email Service for Microsoft Office 365. We are also noticing an SPF record (spf.messaging.microsoft.com) not resolving and we are trying to get in touch with the Microsoft team.

We will provide updates as new information becomes available.

We continue to investigate this issue and have engaged all stakeholder teams. Customers may continue to experience delays sending outbound emails and will be presented with the following error: '451 MAIL internal error (code 2) (#4.4.0) (in reply to MAIL FROM command) and delivery status of Delayed'.

We will provide updates as new information becomes available.

We are aware of customers provisioned on our NAM and EMEA infrastructure experiencing delays sending emails. As a result customers may experience emails queuing on their sending mail servers.

We are currently investigating this issue and will provide updates as new information becomes available. Please note that there is no impact to protection services, and all other aspects of our services remain functional.