Popcorn is a freeware ultra-lightweight POP3/SMTP e-mail client,
free from unwanted and useless bloatware features. Being a true
client/server application, it does not work in the same way as a
typical mail program. This means that you're reading mail from a
POP3 server directly, without downloading it to a local mailbox on
your PC (although you can save mail messages locally if you want to).
This makes it ideally suited for "on the road" mail access, and for
scanning, reading and sending mail over slow internet connections.
http://www.ultrafunk.com/products/popcorn/
Robin