Is Postmark Down? Check current status

Check if Postmark is down, official outages, user-reported issues, and outages map.

Current Postmark status

Postmark is working normally

Updated from Postmark official status page

Postmark not working for you?

Postmark service health. Issues reported in the last 24 hours

Check 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.

Working Normally
Possible Incident
Confirmed Outage
Postmark Outage Map

View Postmark Reports Map

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  • Track outages in real-time
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Postmark recent outages and downtime history

IsDown has tracked 156 incidents since started monitoring Postmark status in March 2022. We collect data from 4522+ services, and normalize the data to give you a clear picture of the impact of the outage. It will show official Postmark outages and also issues that we're started by a spike in crowdsource reports.

Date Incident Duration
Oct 09, 2025
02:18 PM EDT
Major
Partial Service Outage (Sending Not Affected)
We are experiencing a partial service outage. Email sending is working normally. Engineering is a...
34 minutes
Sep 18, 2025
09:30 PM EDT
Major
[Scheduled] Database Maintenance
On September 18th 2025, between 9:30-10:30pm (Eastern Time), engineers will be performing mainten...
about 1 hour
Sep 17, 2025
10:30 PM EDT
Major
[Scheduled] Planned Maintenance
We will be performing planned maintenance from approximately 10:30 PM to 11:30 PM ET today (Septe...
1 day
Sep 10, 2025
12:20 PM EDT
Major
SMTP Authentication Issues
Customers may experience SMTP Authentication issues with API keys generated on or after Saturday,...
1 day
Sep 08, 2025
10:30 PM EDT
Minor
API Latency and Timeout Errors
Starting on approximately September 8th, some customers experienced intermittent latency and time...
about 1 month
Sep 05, 2025
07:16 PM EDT
Major
Intermittent Inbound Email Delays
Engineering is currently investigating an issue impacting the processing of inbound messages. Cus...
13 days
Aug 29, 2025
11:16 AM EDT
Major
Microsoft Deliverability Issues (Outlook, Hotmail)
We are experiencing Broadcast email deliverability issues for Microsoft domains such as Outlook a...
18 days
Aug 01, 2025
01:31 PM EDT
Major
Intermittent Processing Delays
Some emails are showing in a processed state for extended periods of time. This is not affecting ...
26 minutes
May 02, 2025
02:40 PM EDT
Major
Intermittent Sending Delays
We are experiencing Intermittent delays for API and SMTP email sending. Engineering teams are act...
12 minutes
May 01, 2025
10:44 AM EDT
Major
UK Region Link Tracking Issue Reports
We are receiving reports that some customers in the UK region are experiencing link tracking issu...
1 day
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Be the first to know when Postmark goes down

  • Monitor external dependencies in one place
  • Track outages in real-time
  • Keep your team or customers informed
  • Create private or public status pages

Start Free Trial

User comments about Postmark status

See what users are saying about Postmark issues that impacted them and how they are affected by the outage. You can see if other users are experiencing the same issues and if there are any workarounds or solutions.

  • Robert - Backend of the site is down for users post-login..

  • JD - E-mails not being received by customers..

  • koen - our mails send by postmark does not arrive in any microsoft mailbox (hotmail, live, ...).

  • Zac - Unable to access site, seems they're having an SSL issue..

  • Name - Emails marked as "delivered" but not being received .

  • Elise - Emails from TimeToPet are NOT coming through, it's been three hours!!.

  • Andrii - The messages are being queued.

  • Boris - Long time queued emails.. Not sent...

  • Antonio - SSL certificate is expired: openssl s_client -starttls smtp -connect smtp.postmarkapp.com:587.

  • Simon - smtp.postmarkapp.com SSL Certificate expired..

  • Peter - TLS cert expired for outgoing SMTP.

  • Dinesh - Error sending emails using smtp. *.postmarkapp.com has expired.

  • Sudharshan - Lot of our messages in queued status.

  • Katie - I cannot open a link that uses Postmark.

  • Noah - Emails not being delivered.

  • Nathan - 29k emails queued since 9:30.

Users who monitor Postmark status also monitor these services

Users are monitoring tens of services with IsDown. Here are some that are monitored together with Postmark. With IsDown you can get a bird's eye view of all your dependencies and how they are performing.

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View all services Start Monitoring Your Dependencies

Email delivery service for transactional emails with features including API integration, SMTP sending and receiving, and a web application for management.

Monitoring Postmark since March 2022

Tracking 4 Postmark services and regions

Need help? Try here:
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Check their status page.

11 incidents in 2025

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How to monitor the status of Postmark and all your dependencies?

IsDown is a status page aggregator that monitors if Postmark and all your dependencies are experiencing issues. We combine the status of all the services you dependent and provide a clear view of all your vendors health in one place. We not only monitor official information but also crowdsourced reports. That means that even when Postmark, per example, doesn't report an outage, you will still be notified if other users are experiencing issues.

How IsDown monitors Postmark?

IsDown monitors Postmark health in almost real-time

Every few minutes we go to the status page of Postmark (and 4,522+ other services) and check if they are experiencing issues. We collect the status and outage information of Postmark's 4 components. Also, we not only monitor official sources but also user reports. Sometimes or a lot of times vendors take some time to report an incident, so by monitoring user reports we're able to alert you early.

The moment an issue is detected in Postmark, IsDown sends an alert and updates your status page

Not only you will get notified, but IsDown offers notification filters, so you can choose which issues you want to be notified about. This way you avoid getting all the incidents from Postmark and other services.

One status page to monitor all your external dependencies

What you get when monitoring Postmark with IsDown

Track Postmark incidents and downtimes by severity

IsDown checks Postmark official status page for major/minor outages or downtimes. A major outage is when Postmark experiences a critical issue that severely affects one or more services/regions. A minor incident is when Postmark experiences a small issue affecting a small percentage of its customer's applications. An example is the performance degradation of an application. The moment we detect a Postmark outage, we send you an alert and update your dashboard and status page.

Get alerted as soon as users reports problems with Postmark

Postmark and other vendors don't always report outages on time. IsDown collects user reports to provide early detection of outages. This way, even without an official status update, you can stay ahead of possible problems.

All the details of Postmark outages and downtimes

IsDown collects all information from the outages published in Postmark status page to provide the context of the outage. If available, we gather the title, description, time of the outage, status, and outage updates. Another important piece of information is the affected services/regions which we use to filter the notifications that impact your business.

One platform to monitor all your external dependencies

Our tool was build to be the best way to monitor all your external dependencies in one place. IsDown not only will help you monitor Postmark but also 4,522 other services. Your team and customers will have a clear view of all your dependencies and their status, making it easier to identify and resolve issues.

Monitor Postmark and all your external dependencies in real-time

Add all your dependencies to your dashboard. IsDown will monitor them in real-time and send you alerts when there is an issue. You can also create a status page for a bird-eye view and share it with your team.

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Monitor Postmark and all your external dependencies in real-time

Get notified imediatelly when there's an issue with Postmark or other services

Not only you will get notified, but IsDown offers notification filters, so you can choose which issues you want to be notified about. This way you avoid getting all the incidents from Postmark and other services.

Start Monitoring for Free
Get notified imediatelly when there's an issue with Postmark or other services

Send outage information from Postmark and other services to your tools

IsDown integrates with 20+ tools. Connect the status of Postmark and 4,522 other vendors to your tools to receive vendor outage alerts exactly where your team needs them.

Start Monitoring for Free
Send outage information from Postmark and other services to your tools

Share Postmark status in your status page

Create a status page that can easily be access by your team and customers. You can make it public or private, and customize it to your needs. This will be your first line of communication when there's the question 'Is Postmark down?'

Start Monitoring for Free
Share Postmark status in your status page

Postmark Downdetector vs IsDown

While Downdetector relies on user-submitted reports to detect Postmark outages, IsDown monitors Postmark's status page for verified, detailed incident information. Here's why official monitoring provides better reliability for your business:

Features
Downdetector
Official Postmark status page monitoring with real-time incident details.
Monitor 4,522+ services including Postmark in a single dashboard.
Instant Postmark outage alerts sent to Slack, Teams, PagerDuty, and more.
Combined monitoring of Postmark official status and user-reported issues.
Start Monitoring Postmark with IsDown

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Frequently Asked Questions

Is Postmark down today?

Postmark isn't down. You can check Postmark status and incident details on the top of the page. IsDown continuously monitors Postmark official status page every few minutes. In the last 24 hours, there were 0 outages reported.

What is the current Postmark status?

Postmark is currently operational. You can check Postmark 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 Postmark 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 Postmark down today or just slow?

Currently there's no report of Postmark being slow. Check on the top of the page if there are any reported problems by other users.

How are Postmark outages detected?

IsDown monitors the Postmark 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 Postmark having an outage right now?

Postmark last outage was on September 08, 2025 with the title "API Latency and Timeout Errors"

How to check if Postmark is down?

Why use IsDown to monitor Postmark 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 Postmark 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 Postmark?

IsDown and DownDetector help users determine if Postmark 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 Postmark'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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