Transactional Email APIs · reliability comparison
Mailjet vs Mailtrap Email Sending: which is more reliable? (2026)
Mailjet and Mailtrap Email Sending are effectively tied on reliability (99.6 vs 98.2). Over the last 90 days Mailjet reported 1 incident and Mailtrap Email Sending reported 2, with effective uptime of 100% and 99.99% respectively.
Data updated Nov 1, 2026 · How we score
VS
| Metric | Mailjet | Mailtrap Email Sending |
|---|---|---|
| Reliability score | 99.6 | 98.2 |
| Rank (transactional email APIs) | #1 | #2 |
| Uptime (90 days) | 100% | 99.99% |
| Incidents (90 days) | 1 | 2 |
| Partial / major outages | 0 | 0 |
| Avg time to resolve | — | 6m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Mailjet and Mailtrap Email Sending differ
- Mailtrap Email Sending reported 2× as many incidents as Mailjet over the last 90 days (2 vs 1).
- Mailjet's longest outage on record lasted 32m (Jun 5, 2026); Mailtrap Email Sending's lasted 2h 57m (Nov 18, 2025).
90-day uptime
Mailjet
Mailtrap Email Sending
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Mailjet incidents
- InformationalSep 4, 2026 · resolved in 32m
Recent Mailtrap Email Sending incidents
- MaintenanceOct 8, 2026 · resolved in 38m
- Degraded performanceSep 16, 2026 · resolved in 6m
- Degraded performanceSep 16, 2026 · resolved in 6m
Other transactional email APIs to consider
- Loops · #3 · 99.98% uptime
- Twilio SendGrid · #4 · 99.98% uptime
- SparkPost (Bird) · #5 · 99.90% uptime
- Mailgun · #6 · 99.84% uptime
See the full most reliable transactional email apis ranking →