Vendor record
Postmark
Checked
Front door check counts and Postmark’s own incident posts. Use them to investigate a dependency; neither confirms what happened in your app.
Front door checks
We send a request to a documented Postmark endpoint and count the checks that got the answer it is documented to give.
Front door reachable in 2,878 of 2,878 checks with a clear answer, last 30 days, checked every 15 minutes from a single CheckUpstream location.
1 more check gave no clear answer and is not counted.
- Endpoint checked
- api.postmarkapp.com
- Scope
- apiNo vendor region
- First check in this window
- Latest clear answer
Checks 15 minutes apart cannot see disruptions shorter than that. A check that reached the front door does not show that every Postmark product, region or your app worked.
How we count front door checksPostmark says
Incident posts from Postmark’s status page, with its titles, impact levels and times. They say what Postmark chose to post, not what reached your app.
A closed record shows when our record closed. Some older records closed when a post left the status page, without a resolution post from the vendor.
5
incidents Postmark posted, last 90 days
Median recorded duration: 4h 1m. From 5 incidents with vendor-supplied starts and recorded closure times.
Most recent records · all dates
Delayed Inbound Message Processing
MajorPostmark’s postStarted, per Postmark
Closed in our record(2h 15m)
Delayed Message Delivery
MajorPostmark’s postStarted, per Postmark
Closed in our record(4h 1m)
Delays in Stats Data
MajorPostmark’s postStarted, per Postmark
Closed in our record(3h 26m)
Open Webhook Delays
MajorPostmark’s postStarted, per Postmark
Closed in our record(9h 26m)
Sending Delays
MajorPostmark’s postStarted, per Postmark
Closed in our record(16h 55m)
8 older records
Webhook Delays
MajorPostmark’s postStarted, per Postmark
Closed in our record(5h 18m)
Bounce Event Delays
MajorPostmark’s postStarted, per Postmark
Closed in our record(25m)
Email Sending Delays
MajorPostmark’s postStarted, per Postmark
Closed in our record(2h 1m)
Statistics Reporting Delays
MajorPostmark’s postStarted, per Postmark
Closed in our record(8h 12m)
Inbound Reporting Delays
MajorPostmark’s postStarted, per Postmark
Closed in our record(3h 3m)
Webhook Delays
MajorPostmark’s postStarted, per Postmark
Closed in our record(3h 27m)
Security Advisory: Axios NPM Package Supply Chain Compromise [CVE-2026-40175]
Not specifiedPostmark’s postStarted, per Postmark
Closed in our record(2m)
SMPT Sending Delays in the European Union
MajorPostmark’s postStarted, per Postmark
Closed in our record(1h 39m)
Your code, your dependencies
See which of your code paths call Postmark
Connect GitHub or GitLab to find where your public or private repository uses Postmark. Review each match and your alert settings.
Free to start. No credit card.
Use this record on your site
Add Postmark status to your page.
Choose the format your page supports, then copy the code. Badges show the recorded vendor status; they do not establish impact on your app.
Frequently Asked Questions
Is Postmark currently down?
Postmark's latest recorded status is Operational. Check the timestamp and linked source at the top of this page. A vendor status report does not establish whether your application was affected.
When did Postmark last have an outage?
The most recent closed incident record began 18 days ago and spans 2h 15m. The vendor reported a partial outage. Closure may reflect a disappeared post or an expired tracking period; it does not confirm vendor or application recovery. Check the dated history and source links.
Does CheckUpstream publish an uptime percentage for Postmark?
No. CheckUpstream checks Postmark’s front door every 15 minutes and publishes how many checks reached it over the last 30 days, with the endpoint checked. Checks 15 minutes apart cannot see disruptions shorter than that. A percentage would claim more than the checks can show.
How do I monitor Postmark in production?
Create your account, connect GitHub or GitLab and choose a public or private repository. Review the vendor matches and your alert settings. Available notification channels and history depend on your plan.
How does CheckUpstream track Postmark?
This record separates vendor-reported incidents from independent checks. Sources and coverage vary by vendor: review the linked source, check time and measurement scope. Neither kind of evidence establishes SLA credit eligibility.