I need a script that can verify if someone entered the correct username/ password for a mailbox account. Basically what I want to do is allow users on my site to use their email logins/passwords and have them verified from a imail server (via pop3). I know its possible to have php connect to mail servers but I wouldn't have the slightest clue on how to connect and see if a login is accepted/fails.

If anyone could point me to a script that does this or possible some code to get me started would be even better! Thanks.

I used google and got results in 2 minutes

http://forums.devshed.com/archive/5/2003/02/1/39649