Transactional Email APIs · monthly outage report

Transactional Email APIs outages: April 2025

The 14 transactional email APIs we track reported 3 incidents in April 2025. Mailtrap Email Sending reported the most (2). 12 had a clean month: Amazon SES, Brevo, Elastic Email, Mailchimp Transactional (Mandrill), MailerSend, Mailgun, Mailjet, Postmark, Resend, SMTP2GO, SparkPost (Bird), Twilio SendGrid.

VendorIncidentsPartial / majorOutage timeLongestWe detected
Mailtrap Email Sending20—30m0
Loops111h 17m1h 17m0
Amazon SES00——0
Brevo00——0
Elastic Email00——0
Mailchimp Transactional (Mandrill)00——0
MailerSend00——0
Mailgun00——0
Mailjet00——0
Postmark00——0
Resend00——0
SMTP2GO00——0
SparkPost (Bird)00——0
Twilio SendGrid00——0

Longest Transactional Email APIs outages in April 2025

Current most reliable transactional email apis ranking →