iPod Mail for Mac

From Beweis:

iPod Mail allows you to email the mp3 file and/or information about the selected or current playing song on your iPod via iTunes3.

You have the choice between two methods:

1. mail only information about the song
2. mail information and attach the mp3. You'll get a warning about the amount of data you're going to send.

iPod Mail fills out the subject, inserts the information and leaves the message open for inserting the address and some notes. If you decide to email the mp3 it will also attach the file.