Hi -- Is there a simple way to authenticate an e-mail address via libwww or a similar package? Ideally, I'd like to be able to send a username and password to a POP (or IMAP) server and have it tell me whether this is a registered user or not. Barring that, I'd at least like to know whether name@host is a valid address. Thank you. Ramon M. Felciano Digita Alchemy