Here are some of the features: Single class to send plain text, HTML email, and attachments Auto detects attachment types Support for internationalized headers Changes in version 0.3 The API for Mailer.To is changed. Use a string to specify a single recipient, and an iterable to specify more than one. Changes in version 0.4 You can now specify the port in Mailer from mailer import Mailer sender =
![mailer](https://cdn-ak-scissors.b.st-hatena.com/image/square/3ac04ce0305e3030bdd33bedf497bffb84a0bb3d/height=288;version=1;width=512/https%3A%2F%2Fpypi.org%2Fstatic%2Fimages%2Ftwitter.abaf4b19.webp)