Mail support has been missing from the Media Mover 6.x version since I started development on it. I've finally gotten around to connecting it to (formally)Moshe's and z.stolar great Mailhandler module.
I've added a few pieces of functionality beyond the 5.x version. Email accounts are validated on a configuration creation, and a test is offered to make sure that your configuration can connect to the server.
Though Mailhandler is probably better as a standalone for creating nodes from email, the Media Mover implementation can quickly pull files out of emails and generate Media Mover files which can then be operated on. Data created by Mailhandler (subject, user, etc) is passed along with the Media Mover file, so it can be recovered later.
The one drawback to the Media Mover implementation is that it generates a Media Mover file for each file attached to an email. Mailhandler would make a single node with these files attached. Depending on your needs, each implementation has strengths and weaknesses.