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Outage in Substack

Post notifications are delayed

Resolved Minor
October 04, 2025 - Started 7 months ago - Lasted about 5 hours
Official incident page

Incident Report

We are experiencing delays in sending out email and push notifications for published posts.
Components affected
Substack Email delivery

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Latest Updates ( sorted recent to last )
RESOLVED 7 months ago - at 10/04/2025 08:29PM

This incident has been resolved.

MONITORING 7 months ago - at 10/04/2025 07:22PM

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

IDENTIFIED 7 months ago - at 10/04/2025 04:25PM

The issue has been identified and a fix is being implemented.

INVESTIGATING 7 months ago - at 10/04/2025 04:06PM

We are experiencing delays in sending out email and push notifications for published posts.

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