Is Substack Email delivery Down? Substack Email delivery Status & Outages
Substack status updated a few minutes ago
What is Substack Email delivery status right now?
Substack Email delivery is having a minor outage
IsDown last checked Substack Email delivery status on at . We've received 0 user reports in the past 24 hours.
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Monitoring since Apr 2020
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32 incidents caught
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5 components tracked in real-time
Substack Email delivery service health over the last 24 hours
This chart shows the number of user-reported issues for Substack Email delivery service health over the past 24 hours, grouped into 20-minute intervals. It's normal to see occasional reports, which may be due to individual user issues rather than a broader problem. Sign up to get alerts when Substack Email delivery is down.
Outage Map
See where users report Substack Email delivery is down. The map shows recent Substack Email delivery outages from around the world.
Email delivery Outage MapTrusted by 1,000+ teams
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Related services
Substack Downtime Health — Last 90 Days
In the last 90 days, Substack had 2 incidents with a median duration of 1 hour 39 minutes.
2
Incidents
0
Major Outages
2
Minor Incidents
1
hour
Median Resolution
Recent Substack Email delivery outages detected
Full incident reports for recent Substack Email delivery outages, including timelines, affected components, and resolution details.
| Title | IsDown detected At | Duration |
|---|---|---|
|
We are experiencing an issue with a provider.
|
Apr 22, 2026 at 07:12 PM UTC
|
about 2 hours |
|
We’re investigating an issue affecting reported open rates for some publishers. Current evidence ...
|
Mar 27, 2026 at 10:20 PM UTC
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Ongoing |
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We are experiencing delays with processing scheduled posts related to an outage from one of our s...
|
Oct 20, 2025 at 01:41 PM UTC
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about 11 hours |
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We are experiencing delays in sending out email and push notifications for published posts.
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Oct 04, 2025 at 04:06 PM UTC
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about 5 hours |
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We are currently investigating this issue.
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Sep 20, 2025 at 02:42 PM UTC
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about 2 hours |
|
We are currently investigating reports of increased latency and slow response times across Substack.
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Sep 15, 2025 at 03:24 PM UTC
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about 4 hours |
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We are investigating a delay in the sending of scheduled posts.
|
Aug 30, 2025 at 04:17 PM UTC
|
27 minutes |
|
We are currently investigating a higher error rate when trying to load Substack
|
Jun 23, 2025 at 05:45 PM UTC
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about 12 hours |
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We are currently investigating this issue.
|
May 24, 2025 at 02:47 PM UTC
|
about 13 hours |
|
We are currently investigating this issue.
|
Apr 29, 2025 at 05:03 PM UTC
|
about 2 hours |
Trusted by 1,000+ teams
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Frequently Asked Questions
Is Substack Email delivery down today?
Substack Email delivery isn't down. You can check Substack Email delivery status and incident details on the top of the page. IsDown continuously monitors Substack Email delivery official status page every few minutes. In the last 24 hours, there were 1 outages reported.
What is the current Substack Email delivery status?
Substack Email delivery is currently operational. You can check Substack Email delivery status and incident details on the top of the page. The status is updated in almost real-time, and you can see the latest outages and issues affecting customers.
Is there a Substack Email delivery outage now?
Yes, there is an ongoing outage. You can check the details on the top of the page.
Is Substack Email delivery down today or just slow?
Yes, Substack Email delivery might be slow as there's an ongoing outage. You can check the details on the top of the page.
How are Substack Email delivery outages detected?
IsDown monitors the Substack Email delivery official status page every few minutes. We also get reports from users like you. If there are enough reports about an outage, we'll show it on the top of the page.
Is Substack Email delivery having an outage right now?
Substack Email delivery last outage was on April 22, 2026 with the title "Service degraded due to a provider."
How often does Substack Email delivery go down?
IsDown has tracked 32 Substack Email delivery incidents since April 2020. When Substack Email delivery goes down, incidents typically resolve within 98 minutes.
Is Substack Email delivery down for everyone or just me?
Check the Substack Email delivery status at the top of this page. IsDown combines official status page data with user reports to show whether Substack Email delivery is down for everyone or if the issue is on your end.
How to check if Substack is down?
- Subscribe (if possible) to updates on the official status page.
- Create an account in IsDown. Start monitoring Substack and get alerts in real-time when Substack has outages.
Why use IsDown to monitor Substack instead of the official status page?
Because IsDown is a status page aggregator, which means that we aggregate the status of multiple cloud services. You can monitor Substack and all the services that impact your business. Get a dashboard with the health of all services and status updates. Set up notifications via Slack, Datadog, PagerDuty, and more, when a service you monitor has issues or when maintenances are scheduled.
How IsDown compares to DownDetector when monitoring Substack?
IsDown and DownDetector help users determine if Substack is having problems. The big difference is that IsDown is a status page aggregator. IsDown monitors a service's official status page to give our customers a more reliable source of information instead of just relying on reports from users. The integration allows us to provide more details about Substack's Outages, like incident title, description, updates, and the parts of the affected service. Additionally, users can create internal status pages and set up notifications for all their third-party services.
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