Mailgun outage, 12 November 2026
Delivery Delays for Microsoft Mailbox Providers
- Started
- Resolved
- 13 Nov 2026, 18:50 UTC (after 20 h 11 min)
- Impact
- Not stated
Is this still happening?
No. Mailgun marked this incident resolved on 13 Nov 2026, 18:50 UTC, 20 h 11 min after it began.
Right now: Mailgun reports all systems operational. (as of 13 Nov, 20:53 UTC) Live Mailgun status
At a glance
- Mailgun did not rate the impact of this incident.
- It was resolved after 20 h 11 min. That is longer than a typical Mailgun incident: the median of the 26 other resolved ones we recorded is 1 h 20 min.
- Mailgun had 2 other incidents in the 30 days before it.
- 2 earlier incidents look like the same kind of problem (same affected part or wording); the most recent was on 4 Sept 2026.
Our summary from the Mailgun incidents we have recorded since 13 Mar 2026 - how we count.
Last update from Mailgun
Delivery rates to Microsoft mailbox providers have returned to normal levels. Some messages may have expired with the status code 602 and a message of “Too old”. Those messages were not delivered and will need to be retried.
Similar Mailgun incidents
Earlier incidents with the same affected part or wording - useful to see how long this kind of problem usually takes.
-
, resolved after 34 min
-
, resolved
Other recent Mailgun incidents
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