Changes / Mailgun / Email Validation 500s

Mailgun: Major incident: Email Validation 500s

Summary

Mailgun reported a major incident causing Email Validation 500 errors, affecting Deliverability Services - Email Validation and Email Validation. It started at 2025-09-11 22:56 UTC and was resolved at 2025-09-12 02:19 UTC, lasting 3 h 23 min; a fix was implemented and monitored before resolution.

Machine-written from the diff below (Sol; type: incident outage). Check the diff before relying on it.

Major incidentLabel: outage (model (Jev), 100%)Changed Detected Source: stspg.io (opens in new tab)

What changed

AddedTitle#1
Before: not present
After: Email Validation 500s
AddedImpact#2
Before: not present
After: major
AddedStatus#3
Before: not present
After: resolved
AddedStart time#4
Before: not present
After: 2025-09-11 22:56 UTC
AddedResolved time#5
Before: not present
After: 2025-09-12 02:19 UTC
AddedAffected components#6
Before: not present
After: Deliverability Services - Email Validation, Email Validation
AddedUpdateinvestigating#7
Before: not present
After: We are currently investigating this issue.
AddedUpdateidentified#8
Before: not present
After: The issue has been identified and a fix is being implemented.
AddedUpdateidentified#9
Before: not present
After: The issue has been identified and we continue to work on a fix for this issue.
AddedUpdatemonitoring#10
Before: not present
After: A fix has been implemented and we are monitoring the results.
AddedUpdatemonitoring#11
Before: not present
After: We are continuing to monitor for any further issues.
AddedUpdateresolved#12
Before: not present
After: This incident has been resolved.

First version of this incident archived by Rewindex. View the live incident (opens in new tab).

History of this incident

When (UTC)ChangeKind
Major incident: Email Validation 500s (this change)
Mailgun reported a major incident causing Email Validation 500 errors, affecting Deliverability Services - Email Validation and Email Validation. It started at 2025-09-11 22:56 UTC and was resolved at 2025-09-12 02:19 UTC, lasting 3 h 23 min; a fix was implemented and monitored before resolution.
Major incident

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