Marrow Mailer is a Python library to ease sending emails from your application.

By using Marrow Mailer you can:
 - Easily construct plain text and HTML emails.
 - Improve the testability of your e-mail deliveries.
 - Use different mail delivery management strategies; e.g. immediate, deferred,
   or even multi-server.
 - Deliver e-mail through a number of alternative transports including SMTP,
   Amazon SES, sendmail, or even via direct on-disk mbox/maildir.
 - Multiple simultaneous configurations for more targeted delivery.

WWW: https://github.com/marrow/mailer