All Systems Operational

Email Services Operational
API Operational
SMTP Operational
Outbound Delivery Operational
Inbound email processing Operational
Events & Logs Operational
Stats and Analytics Operational
Deliverability Services Operational
Email Validation Operational
Inbox Placement Operational
Spam Trap Network Operational
Email Previews Operational
Customer Tools Operational
Control Panel Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance

Aug 21, 2026

No incidents reported today.

Aug 20, 2026

GCP Reporting Multi Service Outage in US-West1
Resolved - This incident has been resolved.
Aug 20, 10:31 PDT
Update - GCP has put a mitigation in place, we are monitoring the results. At this time we are experiencing no impacts. All delayed webhooks and logs have been processed.
Aug 20, 10:09 PDT
Update - Outbound delivery is operating normally. Currently there are delays for event logs and some webhooks.
Aug 20, 09:30 PDT
Monitoring - Mailgun is monitoring service impacts in GCP's us-west1 region. We are routing traffic away from impacted infrastructure. Currently we are seeing delays in log processing and a small number of message sends.
Aug 20, 09:19 PDT

Aug 19, 2026

No incidents reported.

Aug 18, 2026

No incidents reported.

Aug 17, 2026

Email Delivery Failures to Microsoft 365 Domains
Resolved - We have received confirmation that an external issue impacting email delivery to Microsoft 365 domains has been resolved. Impacted messages would have received an error stating "5.7.511 Access denied, banned sender" between Friday, August 14th and Monday, August 17th. Any failed messages will need to be resent.

Information on retrying messages can be found in our Help Center here: https://help.mailgun.com/hc/en-us/articles/18596982041883-Resending-messages
Aug 17, 13:18 PDT

Aug 16, 2026

No incidents reported.

Aug 15, 2026

No incidents reported.

Aug 14, 2026

No incidents reported.

Aug 13, 2026

No incidents reported.

Aug 12, 2026

No incidents reported.

Aug 11, 2026

Click and Open Tracking Degraded (US Regions)
Resolved - This incident has been resolved.
Aug 11, 00:07 PDT
Monitoring - A fix has been implemented and we are monitoring the results.
Aug 10, 23:54 PDT
Identified - The issue has been identified and a fix is being implemented.
Aug 10, 22:32 PDT
Investigating - We are currently experiencing a denial of service attack against our click and open tracking servers in our US regions. Remediation work is underway. Some requests may time out or fail at this time.
Aug 10, 22:32 PDT

Aug 10, 2026

Aug 9, 2026

No incidents reported.

Aug 8, 2026

No incidents reported.

Aug 7, 2026

No incidents reported.

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