Mailgun

Mailgun is a hosted email API and SMTP service for sending, receiving and tracking email. Applications send mail through its RESTful email API or its SMTP relay, and the developer documentation covers its Send, Optimize, Validate and Inspect products. Mailgun is one brand of Sinch Email, the email group of Sinch AB (publ), and Mailgun Technologies, Inc. is the legal entity named in its privacy notice and terms.

Worth knowing

Mail is sent through the vendor’s hosted infrastructure, so nothing is installed or run by the user. The pricing page lists single sign-on through SAML on its Scale plan.