You might also want to check out: http://www.qmail.org/
and vpopmail Debian package. The basic idea is that you don't use real usernames that exist on the server, but instead create "fake" ones (such as a user called [EMAIL PROTECTED]) just for checking pop3 email. Do some reading... also check out http://www.lifewithqmail.org/ which describes how to do it with Qmail (and no doubt other mail software have their own guides). ----- Original Message ----- From: "Robert Cates" <[EMAIL PROTECTED]> To: <debian-isp@lists.debian.org> Sent: Wednesday, 11 February, 2004 7:02 PM Subject: POP3 accounts Hi, I would like to get a job at a nearby ISP, and therefore I'm trying to learn more on various (technical) aspects of the business. So I would really appreciate it if somebody would explain to me how I for example can have as many as 50 or so POP3 accounts with an ISP, when I really have only one real/login account. I've really learned alot from my Debian 3.0 server I've setup, but some things just seem to elude me. Would it be in the POP server configuration, like Qpopper? Because I can't imagine the ISP will setup 50 seperate accounts for each POP3 account, and then that times 1000+ real customer accounts. Thank you very much for your help!! Robert