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Mailgun: Intermittent Email Validation Errors

Impact: majorStatus: resolvedStarted Resolved (2.6 h)8 updatesSource: stspg.io (opens in new tab)
Summary

Mailgun reported intermittent email validation errors with major impact affecting API and Email Validation components from 2026-02-25 19:10 UTC to 2026-02-25 21:45 UTC, lasting 2 h 35 min. A fix was implemented by 02-25 21:36 UTC, and the incident was resolved.

Machine-written from the archived incident (Sol). Check the timeline before relying on it.

Affected components: APIEmail Services - APIDeliverability Services - Email ValidationEmail Validation

Timeline of updates

  1. investigating

    We are currently investigating this issue.

  2. investigating

    We are continuing to investigate this issue.

  3. identified

    Domain verification is also impacted. Increased chances of domain verification failing. The issue has been identified and engineering is actively working on a fix.

  4. identified

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

  5. identified

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

  6. identified

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

  7. monitoring

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

  8. resolved

    This incident has been resolved.

Rewindex changes for this incident

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). Mailgun profile · Recent Mailgun incidents · Markdown · JSON