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 working normally
IsDown last checked Substack Email delivery status on at . We've received 0 user reports in the past 24 hours.
Monitoring since Apr 2020
·
30 incidents caught
·
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.
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 Map
Related services
Recent Substack Email delivery outages detected by IsDown
Full incident reports for recent Substack Email delivery outages, including timelines, affected components, and resolution details.
| Title | Started At | Duration |
|---|---|---|
|
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
|
about 11 hours |
|
We are experiencing delays in sending out email and push notifications for published posts.
|
Oct 04, 2025 at 04:06 PM UTC
|
about 5 hours |
|
We are currently investigating this issue.
|
Sep 20, 2025 at 02:42 PM UTC
|
about 2 hours |
|
We are currently investigating reports of increased latency and slow response times across Substack.
|
Sep 15, 2025 at 03:24 PM UTC
|
about 4 hours |
|
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
|
about 12 hours |
|
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 |
|
We are investigating reports of delayed email delivery for posts published on Substack.
|
Mar 11, 2025 at 04:43 PM UTC
|
about 1 hour |
|
We are experiencing an outage, but we are recovering.
|
Dec 13, 2024 at 04:21 PM UTC
|
about 1 hour |
Stop wasting hours on 'is it us or them?'
Sound familiar?
- Check multiple status pages
- Hear about outages from your customers
- Wonder "is it us or them?"
IsDown monitors Substack status and all your dependencies to alert you when something goes wrong.
Start 14-day free trialTrusted by 500+ teams · No credit card required
Monitor Substack alongside these services
Teams that track Substack status also keep an eye on these services. Add them all to your IsDown dashboard for a single view of your dependencies.
Ecomail.cz api
Email Delivery
OK
Loop Email
Email Delivery
OK
ZeroBounce
Email Delivery
OK
Poppulo
Email Delivery
OK
MailerSend
Email Delivery
OK
Mailbox.org
Email Delivery
OK
100ms
Video & Web Conferencing
OK
Lucidchart
Team Collaboration
OK
Klaviyo
Email Marketing
OK
DigitalOcean
Cloud Platforms
OK
Monday
Project & Work Management
OK
Zoom
Video & Web Conferencing
MAINTENANCE
Dyspatch
Email Delivery
OK
Mandrill
Email Delivery
OK
MailChannels
Email Delivery
OK
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 0 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?
No, there is no ongoing official outage. Check on the top of the page if there are any reported problems by other users.
Is Substack Email delivery down today or just slow?
Currently there's no report of Substack Email delivery being slow. Check on the top of the page if there are any reported problems by other users.
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 October 20, 2025 with the title "Post emails delayed"
How often does Substack Email delivery go down?
IsDown has tracked 30 Substack Email delivery incidents since April 2020.
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 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.
Latest Articles from our Blog
Monitor Substack Email delivery status and get alerts when it's down
14-day free trial · No credit card required · No code required
Get instant alerts when Substack Email delivery goes down