What is Substack Email delivery current status?

Substack Email delivery is currently operational. You can check Substack Email delivery status and current incidents and outages on the top of the page. The status is updated in almost real-time, and you can see the issues affecting customers.

How to monitor or check Substack Email delivery status?

You can use IsDown service or go to Substack official status page. Some accounts also use Twitter to communicate the status.

How can I be notified when Substack Email delivery is having issues or undergoing maintenance?

You can create an account in IsDown and monitor multiple services or subscribe for updates on the official status page. IsDown will send you a notification in real-time when Substack Email delivery has issues. Substack official status page might also offer notification options such as email, SMS, or Slack.

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Is Substack Email delivery Down? Check current status

Q: Is Substack Email delivery down today?

Substack Email delivery was not down today according to the official status page. In the last 24 hours, there were 0 outages reported. IsDown continuously monitors the Substack status page, looking for the latest outages and issues affecting customers. Check all recent outages in the section 'Latest Substack Email delivery outages, issues and problems' at the top of the page.

Check if Substack Email delivery is down, official outages, user-reported issues, and outages map.

Current Substack Email delivery status

Substack Email delivery is working normally

Updated from Substack official status page 7 seconds ago

Email delivery is a component of Substack ›

Substack Email delivery service health. Issues reported in the last 24 hours

Working Normally

Possible Incident

Confirmed Outage

This chart displays the number of user-reported issues 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. We only consider an issue widespread if there are multiple reports within a short timeframe. Sign up for free to see more Substack status data.

View Substack Outage Reports Map

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Substack Email delivery recent outages and downtime history

IsDown has tracked 29 incidents for Substack Email delivery since started monitoring Substack status in April 2020. We collect data from 4522+ services, and normalize the data to give you a clear picture of the impact of the outage.

Date	Incident	Duration
Oct 04, 2025 06:06 PM CEST	Minor Post notifications are delayed We are experiencing delays in sending out email and push notifications for published posts.	about 5 hours
Sep 20, 2025 04:42 PM CEST	Minor Post email delivery is delayed We are currently investigating this issue.	about 2 hours
Sep 15, 2025 05:24 PM CEST	Minor Substack experiencing increased latency We are currently investigating reports of increased latency and slow response times across Substack.	about 4 hours
Aug 30, 2025 06:17 PM CEST	Minor Delay in sending scheduled posts We are investigating a delay in the sending of scheduled posts.	27 minutes
Jun 23, 2025 07:45 PM CEST	Minor Substack Availability Issue We are currently investigating a higher error rate when trying to load Substack	about 12 hours
May 24, 2025 04:47 PM CEST	Minor Substack is experiencing issues We are currently investigating this issue.	about 13 hours
Apr 29, 2025 07:03 PM CEST	Major Increased error rates We are currently investigating this issue.	about 2 hours
Mar 11, 2025 05:43 PM CET	Minor Email delivery delays We are investigating reports of delayed email delivery for posts published on Substack.	about 1 hour
Dec 13, 2024 05:21 PM CET	Major Elevated Error Rates We are experiencing an outage, but we are recovering.	about 1 hour
Oct 01, 2024 04:04 PM CEST	Major Posts not being delivered via email We are investigating reports that some posts are not being delivered via email.	about 1 hour

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Email delivery service for distributing newsletters directly to subscribers' inboxes as part of the Substack platform.

Monitoring Substack since April 2020

Email delivery is part of Substack. Check the Substack's status.

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8 incidents in 2025

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 04, 2025 with the title "Post notifications are delayed"

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.

Why use IsDown to monitor Substack Email delivery?

Compared to Substack's official status page IsDown offers way more control and visibility over what's going on.

Monitoring not only Substack Email delivery's official status page but also 4,522+ other services

We aggregate the status of all the services you've dependent on. Have a clear view of all your dependencies and their status.
We monitor not only official information but also crowdsourced reports

We send you an alert whenever we detect a new incident from official sources or crowdsourced reports. You will be the first to know when there is an issue with your dependencies.
Create a status pages or send the data to where you need it

Aggregate all the status information in one status page (public or private). You can also send the information and alerts to your team's tools, such as Slack, Datadog, Microsoft Teams, PagerDuty, and more.