Attachments provides a direct and intuitive view of all your attachments so you can find and use them. This application is like an uber-folder for your email files. It comes with a ton of one-button actions for your files, such as zip, email, upload, print, open, and many more.
Attachment Tamer gives you control over attachment handling in Apple Mail.
Useful productivity application designed for Mac.
64-bit utility that lives in the Mac OS X menu bar to provide quick and easy access to all attachments located in Apple Mail.
Entourage Email Archive X is an utility for archiving emails and attachments.
It creates a future-proof, accessible, searchable, archive of all your e-mails.