Postie
robfelty.com/plugins/postie
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
Postie offers many advanced features for posting to your blog via e-mail, including the ability to assign categories by name, included pictures and videos, and automatically strip off signatures. It also has support for both imap and pop3, with the option for ssl with both.