the author of this app says:
Using DoodleMail, you can e-mail your friends and family, as well as send hand-drawn messages to other DoodleMail users. The application can handle several messages at once as well as check for new messages.
A good feature this application offers you is the ability to send messages while you're in a meeting, and without rude interuptions. There is no loud typing to do or messy papers to fiddle with -- just draw your message on the screen!
DoodleMail works with any POP3 server, as well as STMP.