Dev APIs / Email API / Mailgun

Mailgun

OPERATIONAL

Since Aug 2024 · 50 incidents · status.mailgun.com · checked just now

User reportsVisitors who said it's down for them, per hour over 24 hours. Not from the status page. Never counted in grades.
…
CompareAdd to stackStatus page
GradeALast 90 days
APRODASHIP

Overview

30d90d1y
Admitted uptimeCustomer time not hit, by the provider's own account. Regional and partial incidents count in part.
99.963%Grade A
IncidentsEverything posted on the status page except scheduled maintenance.
91 Sev 1
Fully downMost customers down, by the provider's own account.
0m
Median fixMedian time to resolve. Half of incidents were fixed faster.
42m
LongestLongest Sev 1–2 incident, start to resolved.
1h 35m
Since lastTime since the last counted incident was resolved.
24d 7h

By area

AProduction
8INCIDENTS
5h 57mAFFECTED
Your users are hit: apps, APIs, databases, inference
Worst, 90d
SEV 2 · SECURITYAug 11, 2026 · 1h 35m · regionalClick and Open Tracking Degraded (US Regions)
SEV 2Sep 14, 2026 · 58m · regionalRoute delays in EU Region
SEV 2Sep 30, 2026 · 42m · regionalRoute delays in EU Region
Most hit
Email Services - Inbound email processing4
Email Services - Outbound Delivery4
Email Services - Events & Logs4
Email Services - API2
Worse. 11 in the last 6 months, 7 in the 6 before.
AShipping
2INCIDENTS
54mAFFECTED
You can't deploy, build or manage: CI, CLI, dashboard, auth, billing
Worst, 90d
SEV 1Aug 27, 2026 · 37m · regionalEU Messaging Outage
SEV 3Sep 4, 2026 · 17m · regionalEU Messaging Outage
Most hit
Email Services - API2
Email Services - SMTP2
Email Services - Outbound Delivery2
Email Services - Inbound email processing2
Worse. 6 in the last 6 months, 1 in the 6 before.
CleanSev 3–4Sev 1–2No data

Trend, last 12 months

Worse. 20 in the last 6 months, 11 in the 6 before.

Severity mix

Sev 1 · Lights outProd site, API or database down, or data loss1
Sev 2 · BleedingProd degraded or partly down6
Sev 3 · Can't shipCan't deploy, build or manage it1
Sev 4 · PapercutDocs, status page, slow dashboard1
1 security incident

When it breaks

Start times, last 12 months, UTC.

What breaks

Email Services - Events & Logs14 incidents
Email Services - API8 incidents
Email Services - Inbound email processing5 incidents
Email Services - Outbound Delivery5 incidents
Customer Tools - Control Panel4 incidents
Deliverability Services - Email Validation4 incidents

Where it breaks

Last 12 monthsPlaces named on the status page: cloud regions, cities, data centres. Incidents that name none stay off the map.
1 place · 30 with none named
Oregon (us-west1): 1 incident · Mailgun

Communication

Updates eachStatus page updates per incident, on average.
5.9Last 12 months
Update gapMedian time between status page updates during an incident.
25mLast 12 months
PostmortemsSev 1–2 incidents with a published write-up.
0 of 17Sev 1–2

Incident history

Show all 34
Sep 30, 202642mSEV 2
Route delays in EU RegionInbound email route processing in Mailgun's EU Region was delayed from 09:16 to 09:58 UTC on 30 September 2026. The cause was identified and a fix was implemented, and the incident was resolved.AI-graded · regional · Email Services - Inbound email processing
Why this grade
  1. RULES · SEV 2
    Sev 2 because Email Services - Inbound email processing had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
    Inbound email route processing was delayed in the EU Region for about 40 minutes; other regions were not mentioned as affected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 24, 2026 · Raw record
4 updates
  1. 09:16 UTC · investigating
    We are currently investigating this issue.
  2. 09:38 UTC · identified
    The issue has been identified and a fix is being implemented.
  3. 09:48 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  4. 09:58 UTC · resolved
    This incident has been resolved.
Source
Sep 14, 202658mSEV 2
Route delays in EU RegionInbound email routes were delayed in the EU region for about an hour; other regions were not reported affected.AI-graded · regional · Email Services - Inbound email processing
Why this grade
  1. RULES · SEV 2
    Sev 2 because Email Services - Inbound email processing had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
    Inbound email routes were delayed in the EU region for about an hour; other regions were not reported affected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 24, 2026 · Raw record
3 updates
  1. 09:15 UTC · investigating
    We are currently investigating this issue.
  2. 09:55 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  3. 10:13 UTC · resolved
    This incident has been resolved.
Source
Sep 4, 202617mSEV 2
EU Messaging OutageEU email API, SMTP, outbound delivery and inbound processing were in major outage for about 17 minutes; other regions were not named as affected.AI-graded · regional · Email Services - API +5
Why this grade
  1. RULES · SEV 1
    Sev 1 because Email Services - API had a major outage
  2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
    EU email API, SMTP, outbound delivery and inbound processing were in major outage for about 17 minutes; other regions were not named as affected.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
3 updates
  1. 14:16 UTC · investigating
    We are currently investigating this issue.
  2. 14:21 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  3. 14:33 UTC · resolved
    This incident has been resolved.
Source
Sep 4, 202634mSEV 2
Microsoft Incident Resulting in Delivery Issues to M365Email sent through Mailgun to Microsoft 365 recipients was deferred with 451 errors for about 35 minutes; other mail providers were unaffected.AI-graded · regional
Why this grade
  1. RULES · SEV 2
    Sev 2 from the incident title (no components listed)
  2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
    Email sent through Mailgun to Microsoft 365 recipients was deferred with 451 errors for about 35 minutes; other mail providers were unaffected.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
3 updates
  1. 12:20 UTC · 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 busy". Our teams are actively monitoring the situation. Sending to other email providers is not affected.
  2. 12:22 UTC · monitoring
    We are continuing to monitor for any further issues.
  3. 12:54 UTC · resolved
    Microsoft has resolved the underlying issue, we are seeing deliveries to M365 process normally.
Source
Aug 31, 20267h 14mSEV 4
Event Log Delays in US RegionMailgun's US region had delayed event log processing from 14:47 to 22:01 UTC on 31 August 2026, with a large backlog of events. The provider cleared the backlog and events processed normally at resolution. No data loss was reported.AI-graded · regional · Email Services - Events & Logs
Why this grade
  1. RULES · SEV 3
    Sev 3 because Email Services - Events & Logs had degraded performance
  2. CLAUDE · SEV 4 · REGIONAL · HIGH CONFIDENCE · BACK AFTER 7H 14M
    Event log processing in Mailgun's US region ran hours late for about seven hours; sending and delivery were not described as affected.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
11 updates
  1. 14:47 UTC · identified
    We are currently experiencing delays in event log processing in our US region.
  2. 15:29 UTC · identified
    We are continuing to work on a fix for this issue.
  3. 16:24 UTC · identified
    We are continuing to work on a fix for this issue.
  4. 17:05 UTC · identified
    We are continuing to work on a fix for this issue.
  5. 17:56 UTC · identified
    We are putting a fix in place for this issue. There is significant backlogs of event logs to process. We update the expected time of resolution when available.
  6. 18:59 UTC · identified
    The delays in event processing are reducing. We expect all delays to be resolved in the next 3 hours.
  7. 19:38 UTC · identified
    The event processing backlog is steadily decreasing, and we’re continuing to monitor the recovery.
  8. 20:13 UTC · identified
    The event processing backlog is steadily decreasing, and we’re continuing to monitor the recovery. We expect all delays to be resolved in the next 2 hours.
  9. 20:43 UTC · identified
    The event processing backlog is steadily decreasing, and we’re continuing to monitor the recovery.
  10. 21:28 UTC · 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.
  11. 22:01 UTC · resolved
    Event queues have caught up and events are processing normally.
Source
Aug 27, 202637mSEV 1
EU Messaging OutageAn outage in Mailgun's EU datacenter disrupted email API, SMTP, outbound and inbound delivery, events, stats and the control panel from 20:38 to 21:16 UTC on 27 August. A fix was implemented around 21:00 and monitored before resolution. The update does not state a specific root cause.AI-graded · regional · Email Services - API +6
Why this grade
  1. RULES · SEV 1
    Sev 1 because Email Services - API had a major outage
  2. CLAUDE · SEV 1 · REGIONAL · MEDIUM CONFIDENCE
    EU datacenter outage took down Mailgun email sending, SMTP, inbound, API and control panel for about 38 minutes; other regions unaffected per the text.
  3. Claude Haiku 5.5 · prompt v11 · Oct 24, 2026 · Raw record
4 updates
  1. 20:38 UTC · investigating
    We are currently investigating an outage in our EU datacenter
  2. 20:45 UTC · identified
    We have identified the issue and working on restoring service.
  3. 21:00 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  4. 21:16 UTC · resolved
    This incident has been resolved.
Source
Aug 20, 20261h 12mSEV 3
GCP Reporting Multi Service Outage in US-West1A GCP outage in us-west1 caused a small number of Mailgun message sends to fail and delayed event logs and some webhooks. Outbound delivery recovered within about 11 minutes. Mailgun routed traffic away from affected infrastructure and processed the delayed webhooks and logs after GCP applied a mitigation. The incident was resolved at 17:31 UTC.AI-graded · regional · Email Services - Outbound Delivery +1
Why this grade
  1. RULES · SEV 2
    Sev 2 because Email Services - Outbound Delivery had degraded performance
  2. CLAUDE · SEV 3 · REGIONAL · MEDIUM CONFIDENCE
    Some outbound email sends and webhooks were delayed or failed in GCP us-west1 for about 70 minutes; other regions were unaffected.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
4 updates
  1. 16:19 UTC · 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.
  2. 16:30 UTC · monitoring
    Outbound delivery is operating normally. Currently there are delays for event logs and some webhooks.
  3. 17:09 UTC · 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.
  4. 17:31 UTC · resolved
    This incident has been resolved.
Source
Aug 17, 20260mSEV 2
Email Delivery Failures to Microsoft 365 DomainsOutbound email to Microsoft 365 domains was rejected with 5.7.511 errors from Aug 14 to Aug 17; other mailbox providers were not mentioned as affected.AI-graded · regional · Email Services - Outbound Delivery
Why this grade
  1. RULES · SEV 2
    Sev 2 because Email Services - Outbound Delivery had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
    Outbound email to Microsoft 365 domains was rejected with 5.7.511 errors from Aug 14 to Aug 17; other mailbox providers were not mentioned as affected.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
1 update
  1. 20:18 UTC · 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
Source
Aug 11, 20261h 35mSEV 2 · SECURITY
Click and Open Tracking Degraded (US Regions)A denial-of-service attack hit Mailgun's click and open tracking servers in US regions from about 05:32 to 07:07 UTC on 11 August 2026. Some tracking requests timed out or failed. A fix was implemented and the incident was resolved.AI-graded · regional · Email Services - Events & Logs
Why this grade
  1. RULES · SEV 3
    Sev 3 because Email Services - Events & Logs had a partial outage
  2. CLAUDE · SEV 2 · REGIONAL · HIGH CONFIDENCE · SECURITY
    Click and open tracking requests timed out or failed in Mailgun's US regions for about 95 minutes during a denial-of-service attack.
  3. Claude Haiku 5.5 · prompt v11 · Oct 24, 2026 · Raw record
4 updates
  1. 05:32 UTC · 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.
  2. 05:32 UTC · identified
    The issue has been identified and a fix is being implemented.
  3. 06:54 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  4. 07:07 UTC · resolved
    This incident has been resolved.
Source
Jul 24, 20261h 22mSEV 2
Route delays in EU RegionInbound messages processed by routes in Mailgun's EU Region were delayed from about 12:27 to 13:49 UTC on July 24, 2026. The provider deployed a fix, and all delayed messages were processed before resolution.AI-graded · regional · Email Services - Inbound email processing
Why this grade
  1. RULES · SEV 2
    Sev 2 because Email Services - Inbound email processing had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
    Inbound email route processing was delayed in the EU Region for about 80 minutes; no messages were reported lost.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
5 updates
  1. 12:27 UTC · investigating
    Inbound messages processed by routes are currently experiencing delays in processing.
  2. 12:38 UTC · identified
    The issue has been identified and a fix is being implemented.
  3. 13:16 UTC · identified
    We are continuing to work on a fix for this issue.
  4. 13:18 UTC · monitoring
    A fix has been implemented and we are monitoring the results. Delayed messages are being processed.
  5. 13:49 UTC · resolved
    All delayed messages have been processed. Systems are operating normally
Source
Jul 13, 20261h 32mSEV 2
US Email Validation 500's and Mailgun Control Panel UnavailableMailgun's US email validation endpoint returned 500 errors and the control panel was unavailable from 18:23 to 19:56 UTC on July 13. A fix was implemented and the incident was resolved. The provider gave no further cause detail.AI-graded · one model or feature · Customer Tools - Control Panel +1
Why this grade
  1. RULES · SEV 1
    Sev 1 because Deliverability Services - Email Validation had a major outage
  2. CLAUDE · SEV 2 · SINGLE · MEDIUM CONFIDENCE
    US email validation API returned 500 errors and the Mailgun control panel was unavailable for about 90 minutes; other products were not reported affected.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
5 updates
  1. 18:23 UTC · investigating
    We are currently investigating this issue.
  2. 18:51 UTC · investigating
    We are continuing to investigate this issue.
  3. 19:24 UTC · identified
    The issue has been identified and a fix is being implemented.
  4. 19:45 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  5. 19:56 UTC · resolved
    This incident has been resolved.
Source
Jul 10, 20262h 04mSEV 3
Mailgun Control Panel Unavailable For Some UsersThe Mailgun control panel was unavailable for some users from about 18:07 to 20:11 UTC on 2026-07-10. The text does not state a root cause. A fix was rolled out to impacted regions and the incident was resolved. Email Validation was also listed as affected.AI-graded · some customers · Customer Tools - Control Panel +1
Why this grade
  1. RULES · SEV 1
    Sev 1 because Deliverability Services - Email Validation had a major outage
  2. CLAUDE · SEV 3 · SUBSET · MEDIUM CONFIDENCE
    Mailgun control panel was unavailable for some users for about two hours; API and sending were not reported affected.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
8 updates
  1. 18:07 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  2. 18:07 UTC · identified
    The issue has been identified and a fix is being implemented.
  3. 18:36 UTC · identified
    We are continuing to work on a fix for this issue.
  4. 18:59 UTC · identified
    We are continuing to work on a fix for this issue.
  5. 19:33 UTC · identified
    We are continuing to work on a fix for this issue.
  6. 19:48 UTC · identified
    A fix is in the process of being rolled out to impacted regions.
  7. 19:58 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  8. 20:11 UTC · resolved
    This incident has been resolved.
Source
Jun 25, 20261h 15mSEV 4
Inspect previews not renderingMailgun's email preview feature in Inspect stopped rendering previews from about 19:21 to 20:35 UTC on June 25, 2026. The provider said outbound and inbound processing, logs and webhooks stayed normal. A fix was deployed and the incident was resolved.AI-graded · Deliverability Services - Email Previews
Why this grade
  1. RULES · SEV 4
    Sev 4 because Deliverability Services - Email Previews had degraded performance
  2. CLAUDE · SEV 4 · GLOBAL · HIGH CONFIDENCE · BACK AFTER 1H 03M
    Email preview rendering in the Inspect tool failed for about 75 minutes; sending, receiving, logs and webhooks were unaffected.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
5 updates
  1. 19:21 UTC · investigating
    We are currently investigating an issue with email previews not working. Outbound processing, inbound processing, logs and webhook delivery are operating normally.
  2. 20:03 UTC · investigating
    We are continuing to investigate this issue.
  3. 20:21 UTC · identified
    The issue has been identified and a fix is being implemented.
  4. 20:24 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  5. 20:35 UTC · resolved
    This incident has been resolved.
Source
Jun 23, 20266h 55mSEV 3
Log retrieval errors in the US regionMailgun customers in the US region got errors retrieving logs via the events/logs API and customer portal, affecting a subset of customers. Some saw log delays. Outbound, inbound and webhook delivery kept working. A fix was implemented around 15:56 UTC and the incident was resolved at 16:09 UTC on 23 June 2026.AI-graded · regional · Email Services - Events & Logs
Why this grade
  1. RULES · SEV 3
    Sev 3 because Email Services - Events & Logs had a partial outage
  2. CLAUDE · SEV 3 · REGIONAL · MEDIUM CONFIDENCE
    Log retrieval through the events/logs API and portal failed for a subset of US-region customers for about seven hours; sending and webhooks were unaffected.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
12 updates
  1. 09:14 UTC · investigating
    Customers using the events/logs APIs or viewing logs in the customer portal may see errors in viewing or retrieving logs. These errors are only affecting a subset of our customers.
  2. 09:30 UTC · identified
    The issue has been identified and a fix is being implemented.
  3. 10:04 UTC · identified
    We are continuing to work on a fix for this issue.
  4. 10:41 UTC · identified
    We are continuing to work on a fix for this issue.
  5. 11:19 UTC · identified
    We are continuing to work on a fix for this issue.
  6. 12:07 UTC · identified
    We are continuing to work on a fix for this issue.
  7. 13:10 UTC · identified
    We are continuing to work on a fix for this issue.
  8. 14:13 UTC · identified
    We are continuing to work on a fix for this issue.
  9. 14:52 UTC · 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 are operating normally.
  10. 15:25 UTC · 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.
  11. 15:56 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  12. 16:09 UTC · resolved
    This incident has been resolved.
Source
Jun 18, 20261h 50mSEV 4
Partial Delay in Event Processing for US RegionMailgun's events and logs API and customer portal log views showed delayed events for some customers in the US region, starting 08:34 UTC on June 18, 2026. The provider identified the cause, implemented a fix, and resolved the incident at 10:24 UTC. No data loss was reported.AI-graded · regional · Email Services - Events & Logs
Why this grade
  1. RULES · SEV 3
    Sev 3 because Email Services - Events & Logs had degraded performance
  2. CLAUDE · SEV 4 · REGIONAL · HIGH CONFIDENCE
    Event and log API results were delayed for a subset of customers in the US region for about 1.5 hours; nothing else was reported down.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
5 updates
  1. 08:34 UTC · investigating
    Customers using the events/logs APIs or viewing logs in the customer portal may see delays in some events appearing. These delays are only affecting a subset of our customers.
  2. 09:11 UTC · investigating
    We are continuing to investigate this issue.
  3. 09:53 UTC · identified
    The issue has been identified and a fix is being implemented.
  4. 10:11 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  5. 10:24 UTC · resolved
    This incident has been resolved.
Source
Jun 16, 20263h 06mSEV 4
Delayed logs in US regionMailgun's US region showed event logs delayed by about 15 minutes from 14:28 to around 17:34 UTC on June 16, 2026. Outbound sending, inbound processing and webhook delivery kept working. A fix was deployed and the incident was resolved.AI-graded · regional · Email Services - Events & Logs
Why this grade
  1. RULES · SEV 3
    Sev 3 because Email Services - Events & Logs had degraded performance
  2. CLAUDE · SEV 4 · REGIONAL · HIGH CONFIDENCE
    Event logs in Mailgun's US region were delayed about 15 minutes; sending, inbound processing and webhooks worked normally.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
5 updates
  1. 14:28 UTC · investigating
    Logs are currently experiencing delays of 15 minutes in Mailgun's US region. Outbound processing, inbound processing, and webhook delivery are operating normally.
  2. 15:08 UTC · investigating
    We are continuing to investigate this issue.
  3. 15:48 UTC · investigating
    We are continuing to investigate this issue.
  4. 16:16 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  5. 17:34 UTC · resolved
    This incident has been resolved.
Source
Jun 5, 202650mSEV 4
Delayed logs in US regionEvent logs in Mailgun's US region were delayed about 15 minutes; sending, inbound and webhooks kept working normally.AI-graded · regional · Email Services - Events & Logs
Why this grade
  1. RULES · SEV 3
    Sev 3 because Email Services - Events & Logs had degraded performance
  2. CLAUDE · SEV 4 · REGIONAL · HIGH CONFIDENCE · BACK AFTER 38M
    Event logs in Mailgun's US region were delayed about 15 minutes; sending, inbound and webhooks kept working normally.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
3 updates
  1. 13:26 UTC · investigating
    Logs are currently experiencing delays of 15 minutes in Mailgun's US region. Outbound processing, inbound processing, and webhook delivery are operating normally.
  2. 14:04 UTC · monitoring
    A fix has been implemented and we are monitoring results. Outbound processing, inbound processing, and webhook delivery continue operating normally.
  3. 14:15 UTC · resolved
    This incident has been resolved.
Source
Jun 4, 20263h 03mSEV 4
Delayed logs in US regionMailgun's US region showed event logs delayed by about 15 minutes from 18:01 to 21:04 UTC on June 4, 2026. Outbound and inbound email processing and webhook delivery stayed normal. Logs were flowing normally again by 20:48 and the incident was resolved at 21:04.AI-graded · regional · Email Services - Events & Logs
Why this grade
  1. RULES · SEV 3
    Sev 3 because Email Services - Events & Logs had degraded performance
  2. CLAUDE · SEV 4 · REGIONAL · MEDIUM CONFIDENCE · BACK AFTER 2H 47M
    Event logs in Mailgun's US region were delayed about 15 minutes for roughly three hours; sending, receiving and webhooks kept working.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
5 updates
  1. 18:01 UTC · investigating
    Logs are currently experiencing delays of 15 minutes in Mailgun's US region. Outbound processing, inbound processing, and webhook delivery are operating normally.
  2. 18:42 UTC · investigating
    We are continuing to investigate this issue.
  3. 19:52 UTC · investigating
    We are continuing to investigate this issue. Outbound processing, inbound processing, and webhook delivery continue to operate normally.
  4. 20:48 UTC · monitoring
    Logs are flowing normally and engineers continue to monitor.
  5. 21:04 UTC · resolved
    This incident has been resolved.
Source
May 25, 20263h 37mSEV 2
Delayed sending in EUMailgun's EU email API and outbound delivery were delayed from about 12:18 to 15:55 UTC on 2026-05-25. Messages sent through the EU region were delivered late. A fix was deployed and monitored, and the incident was then marked resolved. The provider gave no root cause in the updates.AI-graded · regional · Email Services - API +1
Why this grade
  1. RULES · SEV 1
    Sev 1 because Email Services - API had a major outage
  2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
    Email sending and outbound delivery in the EU were delayed for about three and a half hours; other regions were not named as affected.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
10 updates
  1. 12:18 UTC · investigating
    We are currently investigating this issue.
  2. 12:48 UTC · investigating
    We are continuing to investigate this issue.
  3. 12:59 UTC · investigating
    A fix has been implemented and we are monitoring the results.
  4. 13:00 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  5. 13:38 UTC · investigating
    We are currently investigating this issue.
  6. 14:10 UTC · investigating
    We are continuing to investigate this issue.
  7. 14:46 UTC · identified
    The issue has been identified and a fix is being implemented.
  8. 15:35 UTC · identified
    We are continuing to work on a fix for this issue.
  9. 15:45 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  10. 15:55 UTC · resolved
    This incident has been resolved.
Source
May 6, 202627h 03mSEV 3
Automatic Sender Security Records Not ProvisioningCustomers creating domains with Automatic Sender Security received CNAME records without the matching DKIM TXT records. A fix was implemented on May 7 and monitored before the incident was resolved about 26 hours after it started.AI-graded · some customers · Customer Tools - Control Panel
Why this grade
  1. RULES · SEV 2
    Sev 4 because Customer Tools - Control Panel had degraded performance, raised to Sev 2 for security
  2. CLAUDE · SEV 3 · SUBSET · MEDIUM CONFIDENCE
    Domains created with Automatic Sender Security got DKIM CNAME records without matching TXT records for about 26 hours, blocking domain setup for those customers.
  3. Claude Haiku 5.5 · prompt v8 · Oct 23, 2026 · Raw record
4 updates
  1. 15:40 UTC · identified
    Customers creating domains with Automatic Sender Security may have CNAME records with no corresponding TXT records reflecting DKIM keys. A fix for this issue is being prepared.
  2. 19:46 UTC · identified
    We are continuing to work on a fix for this issue.
  3. 12:40 UTC · monitoring
    A fix has been implemented and we are monitoring the results.
  4. 18:42 UTC · resolved
    This incident has been resolved.
Source

Peers, 90 days

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MailerSendGrade A+100.00% up0 incidentsMTTR –LoopsGrade A+100.00% up1 incidentMTTR 1h 34mKindeGrade A+99.99% up2 incidentsMTTR 1h 12mPaddleGrade A+100.00% up3 incidentsMTTR 47mCloudinaryGrade A99.97% up5 incidentsMTTR 1h 47mAblyGrade A99.97% up7 incidentsMTTR 7mMailgunGrade A99.96% up9 incidentsMTTR 42mPusherGrade A99.96% up2 incidentsMTTR 3h 45mResendGrade B99.86% up25 incidentsMTTR 24mInngestGrade B99.75% up14 incidentsMTTR 43mMapboxGrade C99.91% up2 incidentsMTTR 12h 38mClerkGrade C99.88% up10 incidentsMTTR 3h 26mWorkOSGrade C99.43% up21 incidentsMTTR 1h 05mStytchGrade C99.79% up7 incidentsMTTR 57mPlaidGrade F98.14% up18 incidentsMTTR 3h 38mTwilioGrade F96.38% up56 incidentsMTTR 7h 26m

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Mailgun's live grade, for your README.

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