When was the last Exclaimer outage?

Exclaimer has an incident open right now, which started at 18:51 UTC on 12 November 2026.

Where is the official Exclaimer status page?

Exclaimer publishes its own status at status.exclaimer.com. StatusPal checks it every minute and keeps the incident history here, so you can see how Exclaimer has been doing over time.

How do I get notified when Exclaimer goes down?

Create a free StatusPal account and turn on alerts for Exclaimer. You can be notified by email or by webhook the moment Exclaimer has an incident or recovers.

Is StatusPal affiliated with Exclaimer?

No. StatusPal independently monitors Exclaimer and is not affiliated with it. Status information comes from Exclaimer's official status page and from StatusPal's own checks.

Is Exclaimer down?

Q: Is Exclaimer down right now?

Yes. Exclaimer is down right now. StatusPal checks Exclaimer's official status page every minute, last at 08:59 UTC on 14 November 2026.

Exclaimer is unavailable

Exclaimer is down right now. StatusPal checks Exclaimer's official status page every minute, last at 08:59 UTC on 14 November 2026. Exclaimer reported "Delayed email delivery to Microsoft 365 (Outlook) recipients" at 18:51 UTC and is currently monitoring a fix. Exclaimer had 2 incidents in the last 30 days, about 4 days of disruption in total.

Monitoring

Delayed email delivery to Microsoft 365 (Outlook) recipients

Reported by Exclaimer

Affected components

AU: Server-Side: Mail Routing - Office 365

Degraded

CA: Server-Side: Mail Routing - Office 365

Degraded

EU: Server-Side: Mail Routing - Office 365

Degraded

DE: Server-Side: Mail Routing - Office 365

Degraded

UAE: Server-Side: Mail Routing - Office 365

Degraded

UK: Server-Side: Mail Routing - Office 365

Degraded

US: Server-Side: Mail Routing - Office 365

Degraded

Updates

MonitoringNov 13, 2026 - 09:46 UTC·Exclaimer
Microsoft has advised that it is seeing 'early signs of stabilization' after its last attempted resolution, but noted that service has not yet returned to normal levels. You can follow Microsoft’s progress under EX1550543 and MO1550821 in the Microsoft 365 admin center, or at https://status.cloud.microsoft/ Exclaimer Engineers are continuing to monitor the issue closely for any changes or any actions we can take and to reduce further delays once the impact to Exchange Online has been resolved. What this means for you: - No action is needed from you at this time. Once we have the email, we will be able to apply a signature as expected, provided the Exclaimer Rule is still enabled within Exchange Online. - Delayed emails are not lost. They are currently being retried automatically and will be delivered as soon as possible. You may see a burst of delayed mail arriving at once during the day. - Microsoft is giving emails more time to try to be sent after the issue, this means any messages you tried to send before will likely still be delivered even if they were sent when the issues began. Resending can lead to duplicates when the original messages are delivered.
MonitoringNov 13, 2026 - 00:39 UTC·Exclaimer
Exclaimer engineers have continued to monitor the Microsoft incidents (MO1550821 and EX1550543) overnight for any signs of improvement in Microsoft's own mitigation actions. At this time the incident looks to be ongoing and we are continuing to monitor for any action we can take and to reduce further delays once the impact to Exchange Online has been resolved. Currently, impacted emails are delayed, they will be automatically retried for delivery. This means no action is needed from you at this time; once we have the email, we will be able to apply a signature as expected.
InvestigatingNov 12, 2026 - 18:52 UTC·Exclaimer
We are continuing to monitor the impact of this issue as Microsoft works to mitigate it.