Transactional Email APIs · monthly outage report
Transactional Email APIs outages: October 2026
The 14 transactional email APIs we track reported 35 incidents in October 2026. Brevo reported the most (15). 6 had a clean month: Amazon SES, Loops, Mailchimp Transactional (Mandrill), MailerSend, Mailjet, Mailtrap Email Sending.
| Vendor | Incidents | Partial / major |
|---|---|---|
| Brevo | 15 | 2 |
| Resend | 5 | 0 |
| SMTP2GO | 5 | 1 |
| SparkPost (Bird) | 4 | 0 |
| Twilio SendGrid | 3 | 0 |
| Elastic Email | 1 | 0 |
| Mailgun | 1 | 0 |
| Postmark | 1 | 0 |
| Amazon SES | 0 | 0 |
| Loops | 0 | 0 |
| Mailchimp Transactional (Mandrill) | 0 | 0 |
| MailerSend | 0 | 0 |
| Mailjet | 0 | 0 |
| Mailtrap Email Sending | 0 | 0 |