Transactional Email APIs · monthly outage report
Transactional Email APIs outages: August 2026
The 14 transactional email APIs we track reported 27 incidents in August 2026. Resend reported the most (7). 6 had a clean month: Amazon SES, Elastic Email, Loops, Mailchimp Transactional (Mandrill), MailerSend, Mailjet.
| Vendor | Incidents | Partial / major |
|---|---|---|
| Resend | 7 | 2 |
| Mailgun | 5 | 2 |
| Brevo | 4 | 1 |
| Postmark | 3 | 0 |
| SMTP2GO | 3 | 0 |
| SparkPost (Bird) | 2 | 0 |
| Twilio SendGrid | 2 | 0 |
| Mailtrap Email Sending | 1 | 0 |
| Amazon SES | 0 | 0 |
| Elastic Email | 0 | 0 |
| Loops | 0 | 0 |
| Mailchimp Transactional (Mandrill) | 0 | 0 |
| MailerSend | 0 | 0 |
| Mailjet | 0 | 0 |