Outage report · Partial outage

Postmark outage on Apr 8, 2026

Inbound & SMTP Delivery Delays (Network Connectivity Issues)

SeverityPartial outage
StartedApr 8, 2026, 20:50UTC
ResolvedApr 9, 2026, 02:53UTC
Duration6h 3m

What happened

Postmark reported a partial outage starting Apr 8, 2026, 20:50 UTC. It was marked resolved at Apr 9, 2026, 02:53 UTC.

  • The incident lasted 6h 3m from first report to resolution.
  • It was the 3rd longest of 3 significant outages Postmark reported in the 12 months up to it.
  • Postmark had reported 1 other partial or major outage in the 90 days before it.
  • 8 other vendors we track reported a significant incident within 12 hours of it.

Latest update from Postmark

**[UPDATE]** We determined that yesterday's network instability was caused by a widespread Google (Gmail) outage. You can find more information on Google’s Status Dashboard here: https://www.google.com/appsstatus/dashboard/incidents/224ozRqzW4sFBDK8hLnT We will share an additional update regarding our internal action items later today.

Read Postmark's official incident report ↗

What our independent monitoring saw

Our independent monitoring of Postmark started after this incident, so this report is based on Postmark's status page.

Other outages around the same time

Significant incidents other vendors reported within 12 hours of this one.

Postmark's overall reliability

68.3/100

Postmark has a reliability score of 68.3/100, with 99.58% effective uptime and 8 incidents over the last 90 days.

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