Live status & reliability report
Postmark status, outages & reliability
Postmark is a transactional email delivery service from ActiveCampaign.
Data updated Nov 1, 2026 · score recalculated
Over the last 90 days Postmark had 99.58% effective uptime across 8 status page incidents, resolving them in 7h 41m on average.
Is Postmark down right now?
No, Postmark is up and running.
- Postmark's status page reports all systems operational. Checked .
- All 3 Postmark pages we check are responding. Checked .
90-day uptime
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Key facts about Postmark's reliability
- Over the past 12 months, Postmark published 31 incidents on its status page, 2 of them partial or major outages.
- Its longest outage on record in that time was “Postmark UI Unavailable” on Feb 1, 2026, which lasted 1d 3h.
- Postmark reported 8 incidents in the last 90 days, up from 6 in the 90 days before.
- Incidents most often began on a Monday (9 of 31, UTC).
- Postmark's 90-day uptime of 99.58% is below the average for transactional email APIs (99.76%).
- It resolves incidents more slowly than the typical transactional email API: 7h 41m on average, against a median of 1h 51m.
Score breakdown
Incidents per month
- Major outage
- Partial outage
- Degraded
- Informational
Response time
Daily average response time of Postmark's public pages, measured by our probes.
Not enough data yet — this chart fills in as our monitoring runs.
Score trend
Daily reliability score (rolling 90-day window).
Not enough data yet — this chart fills in as our monitoring runs.
Postmark incident history (last 90 days)
- Degraded performanceOct 27, 2026 · resolved in 1h 43m
- MaintenanceOct 7, 2026 · resolved in 3h
- Degraded performanceSep 28, 2026 · resolved in 2h 6m
- Degraded performanceSep 28, 2026 · resolved in 3h 59m
- Degraded performanceSep 22, 2026 · resolved in 20m
- Degraded performanceSep 17, 2026 · resolved in 1h 33m
- Degraded performanceAug 24, 2026 · resolved in 3h 21m
- Degraded performanceAug 18, 2026 · resolved in 1d 7h
- MaintenanceAug 18, 2026 · resolved in 7m
- Degraded performanceAug 14, 2026 · resolved in 16h 51m
- MaintenanceAug 7, 2026 · resolved in 1h
- MaintenanceJul 21, 2026 · ongoing
Source: Postmark status page · last checked
Our independent monitoring
We check these public Postmark pages every 5 minutes. An outage is recorded after two consecutive failed checks.
| Page | Last check | Uptime (30d) | Avg response |
|---|---|---|---|
| Homepage | Up | 100% | 517 ms |
| Account login | Up | 100% | 462 ms |
| Server API (unauthenticated) | Up | 100% | 368 ms |
How Postmark compares
Postmark status FAQ
Is Postmark down right now?
No, Postmark is up and running. Postmark's status page currently reports all systems operational, and all 3 of the Postmark pages we check every five minutes are responding. This page updates automatically when that changes.
How reliable is Postmark?
Postmark has a reliability score of 68.3 out of 100, ranking #9 of 11 transactional email APIs. Over the last 90 days it had 99.58% effective uptime.
How often does Postmark have outages?
Postmark published 8 incidents on its status page in the last 90 days (0 partial or major outages) and 31 in the past 12 months.
How long do Postmark outages last?
Postmark resolves incidents in 7h 41m on average. Its longest outage in the past year lasted 1d 3h, on Feb 1, 2026.
Does Postmark have a status page?
Yes. Postmark's official status page is status.postmarkapp.com. We read it every five minutes and keep its full incident history.