Postmark vs SendGrid
Independent checks, recorded incidents and SLA terms for these vendors.
30-day window ending
Independent checks
Probes check endpoint responses. A passing check does not confirm that a customer action worked.
| Last 30 days | Postmark | SendGrid |
|---|---|---|
| Passing checks | 100.000% 2,879 conclusive checks | 100.000% 2,880 conclusive checks |
| Response time95th percentile | 561 ms | 509 ms |
Response time uses successful checks only: 95% returned within this duration. Different endpoints and regions can produce different results.
Postmark · check scope
apiRegion not recorded
api.postmarkapp.com
- First sample in this window
- Latest recorded sample
1 inconclusive check excluded from the percentage.
View Postmark recordSendGrid · check scope
apiRegion not recorded
api.sendgrid.com
- First sample in this window
- Latest recorded sample
What the incident records say
Recorded starts in the same 30-day window, excluding maintenance. Vendors report incidents differently; fewer posts don’t prove better reliability.
| Last 30 days | Postmark | SendGrid |
|---|---|---|
| Incidents recorded | 1 | 0 |
| Recorded incident durationMedian | Too few dated records 1 valid duration | Too few dated records 0 valid durations |
Duration uses at least 5 incidents with vendor-supplied starts and recorded closure times. First-observed starts are excluded. A record may close when a post disappears or our tracking period expires; this does not confirm recovery. A missing closure time does not mean an outage is ongoing.
Postmark
Delays in Stats Data
- Started
- Closed in record
SendGrid
No incidents recorded in this window. That does not establish an incident-free month.
Check the terms for your plan
An SLA applies to specific products and plans. Credit eligibility also depends on exclusions, evidence and filing deadlines.