Transactional Email APIs · reliability comparison
Elastic Email vs MailerSend: which is more reliable? (2026)
MailerSend is more reliable than Elastic Email, scoring 100.0 vs 82.4 out of 100. Over the last 90 days Elastic Email reported 3 incidents and MailerSend reported 0, with effective uptime of 99.84% and 100% respectively.
Data updated Nov 2, 2026 · How we score
VS
| Metric | Elastic Email | MailerSend |
|---|---|---|
| Reliability score | 82.4 | 100.0 |
| Rank (transactional email APIs) | #8 | — |
| Uptime (90 days) | 99.84% | 100% |
| Incidents (90 days) | 3 | 0 |
| Partial / major outages | 1 | 0 |
| Avg time to resolve | 6h 19m | — |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Elastic Email and MailerSend differ
- MailerSend reported no incidents in the last 90 days, while Elastic Email reported 3.
- Elastic Email had 1 partial or major outage, compared with 0 for MailerSend.
90-day uptime
Elastic Email
MailerSend
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Elastic Email incidents
- Degraded performanceOct 6, 2026 · resolved in 1h 54m
- Degraded performanceSep 22, 2026 · resolved in 15h 21m
- Partial outageSep 1, 2026 · resolved in 1h 43m
Recent MailerSend incidents
- MaintenanceSep 23, 2026 · ongoing
Affected: Bulk endpoint, SMTP, Email activity, Delivery time, Email sending API, Email analytics +2 more
- MaintenanceSep 15, 2026 · ongoing
Scheduled maintenance - Email sending affected, 5 min
Affected: Bulk endpoint, SMTP, Delivery time, Email sending API, Inbound routing
Other transactional email APIs to consider
- Mailjet · #1 · 100% uptime
- Mailtrap Email Sending · #2 · 99.99% uptime
- Loops · #3 · 99.98% uptime
- Twilio SendGrid · #4 · 99.98% uptime
See the full most reliable transactional email apis ranking →