Mailgun outage, September 2024: US Region(s): Elevated SMTP Connection Latency / Timeouts

Mailgun reported and resolved an incident: US Region(s): Elevated SMTP Connection Latency / Timeouts. It lasted 3.7 hours.

Resolved

From Mailgun's official status page, in their words.

What happened

Started
Resolved
Duration
3.7 hours
Impact
minor
Affected
SMTP
  1. Investigating
  2. Identifiednot posted
  3. Monitoring
  4. Resolved

Why it happened

Mailgun has not given a cause in its updates. We never guess one.

How it was resolved

Mailgun marked it resolved at 1 Oct 2024, 10:29 am without a written explanation of the fix.

This incident on the Mailgun status page

Timeline

Oldest first, from the first notice to the resolution. From Mailgun's official status page, in their words.

  1. investigating

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

  2. monitoring

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

  3. resolved

    This incident has been resolved.

What this means for a business (and what to check now)

  • Retry anything that failed during the 3.7 hours.
  • Enter any payments, bookings or jobs you took another way.
  • If a deadline fell inside the window, keep this page as your record of the outage.

The full guide: what to do when a service you rely on is down

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