MantisBT ships with support for sending out emails via SMTP using the PhpMailer library. It also implements support for custom email senders via EmailSender plugins. Such plugins can have any implementation that can submit email messages to any service that handles delivery.
Examples of such emails senders:
- Sendgrid
- Postmark
- Mailgun
- AWS SES
- Any custom service
This sample plugin submits emails to a webhook receiving service.