Stack Health Score
Score = 30-day uptime − penaltiesLatency >500ms: −2 | >1000ms: −5
Outages this month: −2 each
Degradations this month: −1 each
Uptime · Latency · Incidents
Does your product depend on Postmark API?
Get alerted the moment Postmark API degrades — before your users notice. Monitor it alongside your whole stack, free for 30 days.
100.00%
UptimePercentage of time the API was available.
Only DOWN status impacts this metric.
328ms
Avg Latency
1,000+
APIs monitored
0
Outages
0
Degradations
This Month
About Postmark's Postmark API
Postmark's Postmark API delivers transactional emails with high deliverability and detailed open and click tracking. Postmark was founded in 2009 and focuses exclusively on fast transactional email delivery.. The Postmark API is used by developers worldwide for transactional email, delivery tracking, open rate monitoring, bounce management, email templates.
Probecast monitors the Postmark API from 4 global regions (US West, US East, Europe, Asia Pacific) every 300 minutes, tracking uptime, latency and regional availability. Our real-time monitoring helps developers and teams understand the current health of Postmark's Postmark API and get alerted the moment service degrades.
Why monitor Postmark API?
If your product depends on Postmark API for critical features, an outage on Postmark's side is an outage on your product. Probecast detects Postmark API incidents before your users do, giving you time to communicate with customers, fall back to alternative services or pause background jobs gracefully.
Current status
As of the latest check, Postmark API is operational. The 30-day uptime is 100.00%, with 0 incidents recorded this month. Average response latency across all regions is 328ms.
●Uptime History
Regional Status
US West
175ms
latency
US East
177ms
latency
Europe
306ms
latency
Asia Pacific
652ms
latency
Latency (24h)
Postmark API is one of 1,000+ services Probecast watches for you
Checking a status page during an incident means your users already noticed. Probecast flips that: it tells you first — and shows what the outage costs.
Checked from 4 regions
US West & East, Europe and Asia — a regional outage never hides.
Alerted the moment it degrades
Slack, email, Teams or webhooks — before your users notice.
Your whole stack, one screen
1,000+ catalog APIs plus your own endpoints, websites and cron jobs.
Your business view: traffic & revenue
Google Analytics, Probecast Pixel, Stripe, Polar, Lemon Squeezy & more — beside your uptime.
2-minute setup · no DevOps team needed · cancel anytime during the trial
Frequently Asked Questions
Recent Incidents
No incidents recorded
This API has been stable
API Information
Monitored Endpoint
https://api.postmarkapp.com/server