Postmark Status
Check if Postmark is down, recent outages, user-reported issues, and outages map.
Is Postmark down right now?
Postmark is working normally
Last checked from Postmark's status page
Check if Postmark is down, recent outages, user-reported issues, and outages map.
Postmark is working normally
Last checked from Postmark's status page
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.
IsDown has tracked 154 incidents since started monitoring Postmark status in March 2022. We collect data from 4484+ services, and normalize the data to give you a clear picture of the impact of the outage.
| Date | Status | Incident | Duration |
|---|---|---|---|
|
Sep 18, 2025
09:30 PM EDT
|
Major | [Scheduled] Database Maintenance | about 1 hour |
|
Sep 17, 2025
10:30 PM EDT
|
Major | [Scheduled] Planned Maintenance | 1 day |
|
Sep 10, 2025
12:20 PM EDT
|
Major | SMTP Authentication Issues | 1 day |
|
Sep 05, 2025
07:16 PM EDT
|
Major | Intermittent Inbound Email Delays | 13 days |
|
Aug 29, 2025
11:16 AM EDT
|
Major | Microsoft Deliverability Issues (Outlook, Hotmail) | 18 days |
|
Aug 01, 2025
01:31 PM EDT
|
Major | Intermittent Processing Delays | 26 minutes |
|
May 02, 2025
02:40 PM EDT
|
Major | Intermittent Sending Delays | 12 minutes |
|
May 01, 2025
10:44 AM EDT
|
Major | UK Region Link Tracking Issue Reports | 1 day |
|
Mar 24, 2025
11:03 AM EDT
|
Major | Increased Gmail Spam Reports | about 8 hours |
|
Dec 04, 2024
12:45 PM EST
|
Major | Messages Data Retrieval API Latency & Timeouts | about 5 hours |
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
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Services commonly monitored together with Postmark
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.
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.
No, there is no ongoing official outage. Check on the top of the page if there are any reported problems by other users.
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.
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.
Postmark last outage was on September 18, 2025 with the title "[Scheduled] Database Maintenance"
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.
A Status Page Aggregator centralizes the status updates from multiple service providers into one dashboard, allowing you to monitor and receive alerts about outages or issues from all your critical services in one place.
The Status Aggregator brings you the convenience of monitoring all your critical services in one place, eliminating the need to check the status on multiple websites. It ensures timely alerts on service disruptions, helping you quickly address issues and minimize operational impacts.
IsDown and DownDetector help users determine if a service 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. The integration allows us to provide more details about the outage, 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.
IsDown offers an easy way to monitor Postmark with maximum flexibility
IsDown monitors Postmark for major outages. A major outage is when Postmark experiences a critical issue that severely affects one or more services/regions. When Postmark marks an incident as a major outage, IsDown updates its internal status, the customer status page and dashboard. Depending on the customer settings, IsDown will also send notifications.
IsDown monitors Postmark status page for minor outages. A minor outage 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. When a minor outage occurs, IsDown updates its internal status and shares that information on the customer status page. Depending on the customer settings, IsDown will also send notifications.
IsDown collects all information from the outages published in Postmark status page to provide the most accurate information. 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.
Postmark and other vendors don't always report outages on time. Our crowdsourced status platform helps you stay ahead of outages. Users report issues and outages, sharing details on what problems they are facing. We use that info to provide early signs of outages. This way, even without an official update, you can stay ahead of possible problems.
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