Transactional Email APIs · reliability comparison
Brevo vs Resend: which is more reliable? (2026)
Brevo is more reliable than Resend, scoring 70.5 vs 60.5 out of 100. Over the last 90 days Brevo reported 29 incidents and Resend reported 23, with effective uptime of 99.68% and 99.39% respectively. Brevo resolves incidents faster on average (1h 24m).
Data updated Nov 1, 2026 · How we score
| Metric | Brevo | Resend |
|---|---|---|
| Reliability score | 70.5 | 60.5 |
| Rank (transactional email APIs) | #8 | #10 |
| Uptime (90 days) | 99.68% | 99.39% |
| Incidents (90 days) | 29 | 23 |
| Partial / major outages | 5 | 4 |
| Avg time to resolve | 1h 24m | 3h 39m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Brevo and Resend differ
- Brevo reported 26% more incidents than Resend over the last 90 days (29 vs 23).
- Brevo had 5 partial or major outages, compared with 4 for Resend.
- Brevo fixes problems faster: 1h 24m on average, against 3h 39m for Resend (2.6× quicker).
- Brevo's longest outage on record lasted 2h 2m (Oct 1, 2026); Resend's lasted 2h 39m (Aug 8, 2026).
90-day uptime
Brevo
Resend
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Brevo incidents
- Degraded performanceOct 27, 2026 · resolved in 4h 21m
Affected: Contact Management API, Marketing email tracking links, Transactional emails delivery, Outbound Webhooks, Workflows, SMS Campaigns +4 more
- Degraded performanceOct 26, 2026 · resolved in 2h 11m
Error with doubleOptinConfirmation API
Affected: Contact Management API
- InformationalOct 22, 2026 · resolved in 1h 55m
- Degraded performanceOct 19, 2026 · resolved in 20m
Affected: Account and Settings API
- Degraded performanceOct 15, 2026 · resolved in 10m
Affected: Brevo Tracker, Workflows, Transactional emails tracking links, Transactional emails delivery
- Degraded performanceOct 15, 2026 · resolved in 12m
Delay in Processing Loyalty API request
Affected: Loyalty API
Recent Resend incidents
- Degraded performanceOct 26, 2026 · resolved in 23m
Affected: Email Events
- Degraded performanceOct 23, 2026 · resolved in 49m
Intermittent latency spikes on our emails API
Affected: Single Email, Broadcast Emails, Batch Emails, Scheduled Emails
- Degraded performanceOct 10, 2026 · resolved in 1h 9m
Delayed new team provisioning and contact webhook delivery
Affected: Webhooks, Dashboard, General API
- Degraded performanceOct 9, 2026 · resolved in 23m
Delayed new team provisioning and contact webhook delivery
Affected: Dashboard, General API, Webhooks
- Degraded performanceOct 1, 2026 · resolved in 52m
- Degraded performanceSep 26, 2026 · resolved in 2h 46m
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 →