How often does Mailgun have outages?

Mailgun has had 50 reported incidents recently. Visit apistatuscheck.com/incidents/mailgun for the complete outage history with timelines and resolution details.

What was the last Mailgun outage?

The most recent Mailgun incident was "Route delays in EU Region" on September 14, 2026. It was classified as minor impact and is currently resolved.

Mailgun Outage History

50 incidents reported. Data sourced from the official Mailgun status page.

Total Incidents

Major/Critical

Minor

Resolved

September 2026

Route delays in EU Region

minor

Sep 14, 09:15 AM→Sep 14, 10:13 AMresolved

Sep 14, 10:13 AM

resolved — This incident has been resolved.

Sep 14, 09:55 AM

monitoring — A fix has been implemented and we are monitoring the results.

Sep 14, 09:15 AM

investigating — We are currently investigating this issue.

EU Messaging Outage

critical

Sep 4, 02:16 PM→Sep 4, 02:33 PMresolved

Sep 4, 02:33 PM

resolved — This incident has been resolved.

Sep 4, 02:21 PM

monitoring — A fix has been implemented and we are monitoring the results.

Sep 4, 02:16 PM

investigating — We are currently investigating this issue.

Microsoft Incident Resulting in Delivery Issues to M365

none

Sep 4, 12:20 PM→Sep 4, 12:54 PMresolved

Sep 4, 12:54 PM

resolved — Microsoft has resolved the underlying issue, we are seeing deliveries to M365 process normally.

Sep 4, 12:22 PM

monitoring — We are continuing to monitor for any further issues.

Sep 4, 12:20 PM

monitoring — Starting around 08:00 UTC, Microsoft began experiencing an incident causing an increased volume of deferred emails across all M365 regions. The affected responses are returning "451 4.7.500 Server bus...

August 2026

Event Log Delays in US Region

minor

Aug 31, 02:47 PM→Aug 31, 10:01 PMresolved

Aug 31, 10:01 PM

resolved — Event queues have caught up and events are processing normally.

Aug 31, 09:28 PM

identified — The event processing backlog is steadily decreasing, and we’re continuing to monitor the recovery. We expect all delays to be resolved within the hour.

Aug 31, 08:43 PM

identified — The event processing backlog is steadily decreasing, and we’re continuing to monitor the recovery.

+8 more updates

EU Messaging Outage

critical

Aug 27, 08:38 PM→Aug 27, 09:16 PMresolved

Aug 27, 09:16 PM

resolved — This incident has been resolved.

Aug 27, 09:00 PM

monitoring — A fix has been implemented and we are monitoring the results.

Aug 27, 08:45 PM

identified — We have identified the issue and working on restoring service.

+1 more updates

GCP Reporting Multi Service Outage in US-West1

minor

Aug 20, 04:19 PM→Aug 20, 05:31 PMresolved

Aug 20, 05:31 PM

resolved — This incident has been resolved.

Aug 20, 05:09 PM

monitoring — 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, 04:30 PM

monitoring — Outbound delivery is operating normally. Currently there are delays for event logs and some webhooks.

+1 more updates

Email Delivery Failures to Microsoft 365 Domains

none

Aug 17, 08:18 PM→Aug 17, 08:18 PMresolved

Aug 17, 08:18 PM

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,...

Click and Open Tracking Degraded (US Regions)

major

Aug 11, 05:32 AM→Aug 11, 07:07 AMresolved

Aug 11, 07:07 AM

resolved — This incident has been resolved.

Aug 11, 06:54 AM

monitoring — A fix has been implemented and we are monitoring the results.

Aug 11, 05:32 AM

identified — The issue has been identified and a fix is being implemented.

+1 more updates

July 2026

Route delays in EU Region

minor

Jul 24, 12:27 PM→Jul 24, 01:49 PMresolved

Jul 24, 01:49 PM

resolved — All delayed messages have been processed. Systems are operating normally

Jul 24, 01:18 PM

monitoring — A fix has been implemented and we are monitoring the results. Delayed messages are being processed.

Jul 24, 01:16 PM

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

+2 more updates

US Email Validation 500's and Mailgun Control Panel Unavailable

critical

Jul 13, 06:23 PM→Jul 13, 07:56 PMresolved

Jul 13, 07:56 PM

resolved — This incident has been resolved.

Jul 13, 07:45 PM

monitoring — A fix has been implemented and we are monitoring the results.

Jul 13, 07:24 PM

identified — The issue has been identified and a fix is being implemented.

+2 more updates

Mailgun Control Panel Unavailable For Some Users

major

Jul 10, 06:07 PM→Jul 10, 08:11 PMresolved

Jul 10, 08:11 PM

resolved — This incident has been resolved.

Jul 10, 07:58 PM

monitoring — A fix has been implemented and we are monitoring the results.

Jul 10, 07:48 PM

identified — A fix is in the process of being rolled out to impacted regions.

+5 more updates

June 2026

Inspect previews not rendering

minor

Jun 25, 07:21 PM→Jun 25, 08:35 PMresolved

Jun 25, 08:35 PM

resolved — This incident has been resolved.

Jun 25, 08:24 PM

monitoring — A fix has been implemented and we are monitoring the results.

Jun 25, 08:21 PM

identified — The issue has been identified and a fix is being implemented.

+2 more updates

Log retrieval errors in the US region

minor

Jun 23, 09:14 AM→Jun 23, 04:09 PMresolved

Jun 23, 04:09 PM

resolved — This incident has been resolved.

Jun 23, 03:56 PM

monitoring — A fix has been implemented and we are monitoring the results.

Jun 23, 03:25 PM

identified — We are continuing to work on a fix for this issue. Some customers may see log delays. Outbound processing, inbound processing, and webhook delivery continue operating normally.

+9 more updates

Partial Delay in Event Processing for US Region

minor

Jun 18, 08:34 AM→Jun 18, 10:24 AMresolved

Jun 18, 10:24 AM

resolved — This incident has been resolved.

Jun 18, 10:11 AM

monitoring — A fix has been implemented and we are monitoring the results.

Jun 18, 09:53 AM

identified — The issue has been identified and a fix is being implemented.

+2 more updates

Delayed logs in US region

minor

Jun 16, 02:28 PM→Jun 16, 05:34 PMresolved

Jun 16, 05:34 PM

resolved — This incident has been resolved.

Jun 16, 04:16 PM

monitoring — A fix has been implemented and we are monitoring the results.

Jun 16, 03:48 PM

investigating — We are continuing to investigate this issue.

+2 more updates

Delayed logs in US region

none

Jun 5, 01:26 PM→Jun 5, 02:15 PMresolved

Jun 5, 02:15 PM

resolved — This incident has been resolved.

Jun 5, 02:04 PM

monitoring — A fix has been implemented and we are monitoring results. Outbound processing, inbound processing, and webhook delivery continue operating normally.

Jun 5, 01:26 PM

investigating — Logs are currently experiencing delays of 15 minutes in Mailgun's US region. Outbound processing, inbound processing, and webhook delivery are operating normally.

Delayed logs in US region

minor

Jun 4, 06:01 PM→Jun 4, 09:04 PMresolved

Jun 4, 09:04 PM

resolved — This incident has been resolved.

Jun 4, 08:48 PM

monitoring — Logs are flowing normally and engineers continue to monitor.

Jun 4, 07:52 PM

investigating — We are continuing to investigate this issue. Outbound processing, inbound processing, and webhook delivery continue to operate normally.

+2 more updates

May 2026

Delayed sending in EU

critical

May 25, 12:18 PM→May 25, 03:55 PMresolved

May 25, 03:55 PM

resolved — This incident has been resolved.

May 25, 03:45 PM

monitoring — A fix has been implemented and we are monitoring the results.

May 25, 03:35 PM

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

+7 more updates

Automatic Sender Security Records Not Provisioning

minor

May 6, 03:40 PM→May 7, 06:42 PMresolved

May 7, 06:42 PM

resolved — This incident has been resolved.

May 7, 12:40 PM

monitoring — A fix has been implemented and we are monitoring the results.

May 6, 07:46 PM

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

+1 more updates

April 2026

Elevated Timeouts for Validations

minor

Apr 17, 04:45 PM→Apr 17, 05:15 PMresolved

Apr 17, 05:15 PM

resolved — This incident has been resolved.

Apr 17, 05:05 PM

monitoring — We are continuing to monitor for any further issues.

Apr 17, 05:05 PM

monitoring — A fix has been implemented and we are monitoring the results.

+1 more updates

TLS Certificate Validation Errors for Clients Without SNI

major

Apr 15, 01:40 PM→Apr 15, 03:34 PMresolved

Apr 15, 03:34 PM

resolved — This incident has been resolved.

Apr 15, 02:02 PM

monitoring — A fix has been implemented and we are monitoring the results.

Apr 15, 01:42 PM

identified — The issue has been identified and a fix is being implemented.

+1 more updates

Elevated 500 errors on Messages endpoint in US

minor

Apr 7, 05:30 PM→Apr 7, 05:42 PMresolved

Apr 7, 05:42 PM

resolved — This incident has been resolved. Elevated 500 errors beginning at 17:25 UTC resolved at 17:30 UTC

Apr 7, 05:32 PM

monitoring — A fix has been implemented and we are monitoring the results.

Apr 7, 05:30 PM

identified — The issue has been identified and a fix is being implemented.

March 2026

Elevated 401 errors in US Region

major

Mar 19, 06:43 PM→Mar 19, 06:53 PMresolved

Mar 19, 06:53 PM

resolved — A fix has been deployed and systems are back to normal.

Mar 19, 06:43 PM

identified — Some requests may be incorrectly failing with 401 error codes in our US region.

Intermittent API Errors in US Region

major

Mar 13, 11:29 AM→Mar 13, 12:49 PMresolved

Mar 13, 12:49 PM

resolved — The incident has been resolved.

Mar 13, 12:33 PM

monitoring — A fix has been implemented and we are monitoring the results.

Mar 13, 12:19 PM

identified — The issue has been identified and a fix is being implemented.

+2 more updates

February 2026

Intermittent Email Validation Errors

major

Feb 25, 07:10 PM→Feb 25, 09:45 PMresolved

Feb 25, 09:45 PM

resolved — This incident has been resolved.

Feb 25, 09:36 PM

monitoring — A fix has been implemented and we are monitoring the results.

Feb 25, 08:25 PM

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

+5 more updates

November 2025

Delayed Logs in EU Region

minor

Nov 29, 08:38 AM→Nov 29, 09:56 AMresolved

Nov 29, 09:56 AM

resolved — This incident has been resolved.

Nov 29, 09:02 AM

identified — Logs are currently experiencing delays of 20 minutes in Mailgun's EU region. Outbound processing, inbound processing, and webhook delivery are operating normally.

Nov 29, 08:38 AM

identified — Logs are currently experiencing delays of 15 minutes in Mailgun's EU region. Outbound processing, inbound processing, and webhook delivery are operating normally.

Delayed Logs in EU Region

minor

Nov 28, 08:28 AM→Nov 28, 07:14 PMresolved

Nov 28, 07:14 PM

resolved — All systems are operating normally.

Nov 28, 06:54 PM

monitoring — Events are processing normally without delay. We will continue to monitor the performance of the logging system.

Nov 28, 06:26 PM

monitoring — Logs are currently delayed by 20 minutes due to elevated sending volumes. Outbound sending, inbound messages, and webhooks are not impacted.

+26 more updates

Delayed Logs in US Region

minor

Nov 28, 04:30 PM→Nov 28, 05:56 PMresolved

Nov 28, 05:56 PM

resolved — Events are processing normally.

Nov 28, 05:19 PM

monitoring — Events are processing normally, we continue to monitor as we see elevated send volumes.

Nov 28, 04:30 PM

identified — Logs are currently experiencing delays of 15 minutes in Mailgun's US region. Outbound processing, inbound processing, and webhook delivery are operating normally.

Delayed Logs in EU Region

minor

Nov 27, 08:46 AM→Nov 27, 11:07 AMresolved

Nov 27, 11:07 AM

resolved — This incident has been resolved.

Nov 27, 10:49 AM

monitoring — We continue to monitor while the system processes delayed events.

Nov 27, 10:21 AM

monitoring — A fix has been implemented and we are monitoring the results. The system continues to work through the delayed logging events backlog.

+4 more updates

Elevated inbound recipient rejected

none

Nov 13, 10:30 AM→Nov 13, 10:30 AMresolved

Nov 18, 01:31 PM

resolved — On November 13th, Mailgun incorrectly rejected a subset of inbound emails with a 550 "recipient rejected" error. Senders received bounce notifications even though delivery should have succeeded. Affe...

October 2025

Delayed Message Processing in US

minor

Oct 24, 02:14 PM→Oct 24, 03:58 PMresolved

Oct 24, 03:58 PM

resolved — This incident has been resolved.

Oct 24, 03:40 PM

monitoring — Operations are back to normal and queues are cleared. We'll continue to monitor.

Oct 24, 02:47 PM

monitoring — Queues are being worked through, we continue to monitor resolution.

+1 more updates

US Email Ingest Errors

minor

Oct 8, 01:00 PM→Oct 8, 01:00 PMresolved

Oct 8, 03:00 PM

resolved — Between 12:55 UTC and 13:07 UTC, customers may have experienced email sending failures in the US region. A deployment of new code caused our sending pipeline to temporarily reject some email submissio...

September 2025

Login issues with Mailgun Application

minor

Sep 30, 10:57 AM→Sep 30, 12:13 PMresolved

Sep 30, 12:13 PM

resolved — This incident has been resolved.

Sep 30, 11:46 AM

monitoring — We are continuing to monitor for any further issues.

Sep 30, 11:46 AM

monitoring — A fix has been implemented and we are monitoring the results.

+2 more updates

Sending errors in US

major

Sep 12, 10:07 AM→Sep 12, 03:21 PMresolved

Sep 12, 03:21 PM

resolved — All systems are operating normally at this time. Our engineers continue to monitor our systems for any recurrence or new issues.

Sep 12, 02:48 PM

monitoring — Systems have normalized, we are continuing to monitor for any issues.

Sep 12, 01:57 PM

monitoring — A fix has been implemented and we are monitoring the results.

+7 more updates

Message Delays in US Region

minor

Sep 12, 06:26 AM→Sep 12, 08:25 AMresolved

Sep 12, 08:25 AM

resolved — This incident has been resolved.

Sep 12, 07:29 AM

monitoring — A fix has been implemented and we are monitoring the results.

Sep 12, 06:26 AM

investigating — We are currently investigating this issue.

Email Validation 500s

major

Sep 11, 10:56 PM→Sep 12, 02:19 AMresolved

Sep 12, 02:19 AM

resolved — This incident has been resolved.

Sep 12, 02:07 AM

monitoring — We are continuing to monitor for any further issues.

Sep 12, 02:07 AM

monitoring — A fix has been implemented and we are monitoring the results.

+3 more updates

EU email delivery latency

minor

Sep 1, 04:23 PM→Sep 1, 05:11 PMresolved

Sep 1, 05:11 PM

resolved — This incident has been resolved.

Sep 1, 04:53 PM

monitoring — Queues are being worked through. Normal email delivery times will resume shortly. In addition to delayed email delivery, these other parts of our system saw increased processing time as well: inbound ...

Sep 1, 04:38 PM

monitoring — A fix has been implemented and we are monitoring the results.

+4 more updates

August 2025

US email delivery latency

minor

Aug 20, 04:20 PM→Aug 20, 05:14 PMresolved

Aug 20, 05:14 PM

resolved — This incident has been resolved.

Aug 20, 04:27 PM

monitoring — Services are fully operational.

Aug 20, 04:20 PM

monitoring — Email's from our us-east region may have experienced longer delivery time between 16:00 UTC and 16:20 UTC. The issue is resolved and we are monitoring.

July 2025

Partial Delay in Event Processing

minor

Jul 29, 03:37 PM→Jul 29, 06:17 PMresolved

Jul 29, 06:17 PM

resolved — This incident has been resolved.

Jul 29, 05:54 PM

monitoring — We are continuing to monitor the system as delays resolve

Jul 29, 03:45 PM

monitoring — A fix has been implemented and we are monitoring the results.

+1 more updates

HTTPS Tracking Certificate Creation / Renewal blocked by Let's Encrypt Outage

minor

Jul 21, 11:56 PM→Jul 22, 11:33 AMresolved

Jul 22, 11:33 AM

resolved — This incident has been resolved.

Jul 22, 05:22 AM

monitoring — The current status of Let's Encrypt infrastucture is "[Identified] We have deployed mitigations for the failure of our internal DNS servers. Issuance of certificates is now succeeding, though we are s...

Jul 21, 11:56 PM

identified — Let's Encrypt, the certificate issuer used for creating certificates on customer tracking domains is experiencing an outage (https://letsencrypt.status.io/). Attempting to generate or regenerate a tra...

May 2025

Degraded performance

minor

May 19, 09:27 PM→May 19, 10:28 PMresolved

May 19, 10:28 PM

resolved — This incident has been resolved.

May 19, 09:48 PM

monitoring — A fix has been implemented and we are monitoring the results.

May 19, 09:33 PM

identified — We have identified an issue with one of our datastores and are attempting to implement a fix.

+1 more updates

Intermittent API Errors

critical

May 14, 06:38 PM→May 14, 10:18 PMresolved

May 14, 10:18 PM

resolved — This incident has been resolved.

May 14, 10:03 PM

monitoring — A fix has been deployed and we are monitoring.

May 14, 09:32 PM

identified — We identified a routing issue in our internal service mesh. We are attempting to roll out a fix.

+5 more updates

March 2025

Errors connecting to smtp.eu.mailgun.org

major

Mar 17, 09:20 AM→Mar 17, 07:44 PMresolved

Mar 17, 07:44 PM

resolved — This incident has been resolved.

Mar 17, 06:43 PM

monitoring — We are continuing to monitor for any further issues.

Mar 17, 03:02 PM

monitoring — A mitigation has been put in place and SMTP / Inbound email processing in our EU region is back to full working behavior.

+5 more updates

February 2025

Intermittent Log and Event API Errors

minor

Feb 10, 05:23 PM→Feb 10, 07:22 PMresolved

Feb 10, 07:22 PM

resolved — This incident has been resolved.

Feb 10, 07:20 PM

monitoring — A fix has been implemented and we are monitoring the results.

Feb 10, 07:19 PM

monitoring — A fix has been implemented and we are monitoring the results.

+1 more updates

November 2024

Login Errors

minor

Nov 14, 11:58 PM→Nov 15, 12:28 AMresolved

Nov 15, 12:28 AM

resolved — This incident has been resolved.

Nov 15, 12:26 AM

investigating — Our team has resolved the login issue.

Nov 14, 11:58 PM

investigating — Our team is investigating reports of Login issues for a subset of administrative accounts

October 2024

Europe - Email Delivery Latency

minor

Oct 17, 12:12 PM→Oct 17, 08:41 PMresolved

Oct 17, 08:41 PM

resolved — This incident has been resolved.

Oct 17, 08:02 PM

monitoring — A fix has been implemented and traffic is sending through these networks. We are monitoring the resolution.

Oct 17, 07:15 PM

identified — We are continuing to work with our network provider to bring this range online.

+5 more updates

September 2024

US Region(s): Elevated SMTP Connection Latency / Timeouts

minor

Sep 30, 08:47 PM→Oct 1, 12:29 AMresolved

Oct 1, 12:29 AM

resolved — This incident has been resolved.

Sep 30, 11:38 PM

monitoring — A fix has been implemented and we are monitoring the results.

Sep 30, 08:47 PM

investigating — We are currently experiencing elevated timeouts when sending email via SMTP in US regions. Investigation is underway.

August 2024

US Email Delivery Issue

none

Aug 20, 07:00 PM→Aug 20, 07:00 PMresolved

Aug 21, 12:03 PM

resolved — On August 20th, 2024, between 18:45 - 22:45 UTC, emails submitted to our US region experienced a small chance of delivery failure. Please review your email Events for "602 Too old message" errors to i...

Intermittent errors for login.mailgun.com and app.mailgun.com

major

Aug 17, 05:35 PM→Aug 17, 05:57 PMresolved

Aug 17, 05:57 PM

resolved — This incident has been resolved.

Aug 17, 05:55 PM

monitoring — We are continuing to monitor for any further issues.

Aug 17, 05:52 PM

monitoring — A fix has been implemented and we are monitoring the results.

+2 more updates

July 2024

Delayed Logs in EU Region

minor

Jul 19, 11:03 AM→Jul 19, 04:24 PMresolved

Jul 19, 04:24 PM

resolved — This incident has been resolved.

Jul 19, 02:35 PM

monitoring — Data is continuing to be backfilled. We are monitoring the process.

Jul 19, 01:22 PM

monitoring — We are monitoring the backfill process for log data.

+3 more updates

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