Substack: Delays in post delivery
Affected components: Email delivery
Timeline of updates
- investigating
We are experiencing delays in post email delivery due to an outage from a third party service provider.
- monitoring
A fix has been implemented and we are monitoring the results.
- resolved
This incident has been resolved.
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-17 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
ad22447c5a423f89…
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).
Cite this
Status incident (vendor impact label: none) posted by Substack, started 2026-06-03 13:58 UTC, resolved after 52 min, 3 update(s).
- Title
- Delays in post delivery
- Vendor
- Substack
- Date
- URL
- https://rewindex.com/company/substack/incidents/ppyrg4hrrrxc
Substack profileRecent Substack incidentsAll outages on June 3, 2026Substack in June 2026MarkdownJSON