Outage in Substack

Email delivery delays

Resolved Minor
March 11, 2025 - Started 2 months ago - Lasted about 1 hour
Official incident page

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Outage Details

We are investigating reports of delayed email delivery for posts published on Substack.
Components affected
Substack Email delivery
Latest Updates ( sorted recent to last )
RESOLVED 2 months ago - at 03/11/2025 05:35PM

This incident has been resolved.

MONITORING 2 months ago - at 03/11/2025 04:57PM

The issue causing delays to email delivery on posts has been addressed.

IDENTIFIED 2 months ago - at 03/11/2025 04:52PM

We have identified the cause of the email delays and are working to resolve.

INVESTIGATING 2 months ago - at 03/11/2025 04:43PM

We are investigating reports of delayed email delivery for posts published on Substack.

Latest Substack outages

Email analytics backup - 17 days ago
Increased error rates - 18 days ago
Errors loading notes feed - about 2 months ago
Issues loading Notes - 3 months ago

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