Exclaimer Outage History

We are observing improvements in signature imprints and portal access. However, intermittent failures may still occur as the underlying Azure issue is not yet fully resolved. We continue to actively monitor progress from Microsoft and will provide updates here as more information becomes available.

We are continuing to see improvements, with no further reports at this time. Microsoft is still in the process of rolling out changes across the region, and we are closely monitoring progress. We will provide further updates as they become available.

Exclaimer Engineers have been able to identify changes being made by Outlook when the email signature is applied, and then the email is saved as a draft. Resulting in a secondary signature being applied server-side if this is also enabled. The issue is being raised with Microsoft directly to understand this behavioural change further.

Exclaimer Engineers have made a change to signature generation to help prevent the issue from occurring for client-side signatures. We are continuing to raise the issue with Microsoft to gain a more in-depth understanding of the problem.

Exclaimer Engineers are continuing to investigate issues affecting customers in the MEA region who are facing delays or deferrals when sending emails. Our findings indicate that Exclaimer itself is functioning properly in the region, and successful connections are being established for all incoming messages. Occasionally, we notice that our monitoring systems initiate a connection but then disconnect before completing the message transfer. Since these cases don't reach our servers, it suggests that the problem is likely outside of Exclaimer's framework, occurring when the sending email server attempts to route messages. We have contacted Microsoft to further investigate the situation. For customers experiencing delays in mail flow, an immediate workaround is to disable the Exchange Mail Flow rules. Despite the delays, we confirm that all messages are eventually being processed by Exclaimer as expected.

We are seeing continued improvements in mail flow performance. We are currently working with Microsoft to confirm whether their fix has been fully deployed. Error rates have decreased, and we are no longer observing issues in the MEA region. However, some customers in the US region are still experiencing impact. At this time, the mail flow rule disablement workaround can be safely reverted for customers who previously applied it to avoid delays. For customers who are still experiencing the issue, or encounter any new occurrences, we recommend disabling the Exclaimer transport rule (mail flow rule) as a temporary workaround. We will continue monitoring the situation closely and will provide further updates once we receive confirmation from Microsoft.

We are continuing to work on a fix for this issue.

Error rates have continued to decrease, and we’re now seeing minimal errors across both the MEA and US regions. We’re still actively working with Microsoft to better understand the root cause, overall impact, and confirmation of the fix. If the issue continues for any affected users, disabling the Exclaimer transport (mail flow) rule remains a valid temporary workaround.

Exclaimer Engineers have identified the cause of the issue and are currently working on a solution. Further updates will be provided once this is released.

Exclaimer Engineers are continuing to monitor the ongoing maintenance with our certification provider and identify impacted customers. The next update will be provided in an hour's time, or once further information becomes available.

Exclaimer engineers have identified a global issue with Azure that is impacting our ability to handle messages, as new compute resource cannot currently be created to handle demand, and as such customers in AU might experience issues with message delivery. You can look to disable the Mail flow rule ‘Identify messages to send to Exclaimer Cloud’ to restore mail flow. We will continue to monitor the performance to ensure that the service fully recovers, and provide any updates received by Microsoft. They currently anticipate the fix for this will be in place by 00:00 UTC. If you are experiencing any other issues with Exclaimer at this time, please contact our support team right away.