Alternatives
Most reliable MailerSend alternatives (2026)
MailerSend has a reliability score of 100.0/100 with 100% uptime over the last 90 days. Here is how every alternative we track compares, ranked by reliability.
Transactional Email APIs alternatives to MailerSend
| Alternative | Score | Uptime |
|---|---|---|
| Mailjet#1 transactional email API | 99.6 | 100% |
| Mailtrap Email Sending#2 transactional email API | 98.2 | 99.99% |
| Loops#3 transactional email API | 96.3 | 99.98% |
| Twilio SendGrid#4 transactional email API | 94.8 | 99.98% |
| SparkPost (Bird)#5 transactional email API | 87.7 | 99.90% |
| Mailgun#6 transactional email API | 83.2 | 99.84% |
| Elastic Email#7 transactional email API | 82.4 | 99.84% |
| Brevo#8 transactional email API | 70.5 | 99.68% |
| Postmark#9 transactional email API | 68.3 | 99.58% |
| Resend#10 transactional email API | 60.5 | 99.39% |
| SMTP2GO#11 transactional email API | 58.4 | 99.17% |