Virtual users in sendmail?

Is there any way to setup sendmail to receive email for virtual users. I.e. i dont have to create them a full account on the linux machine. I want to have a list of usernames and passwords which it reads and then using a pop3 server (qpopper?) they can connect and read them. I am migrating to linux on this server from windows - in windows i used mercury and it worked fine. Any ideas? Alex Brett rebuke@rebuke.eu.org _____________________________________________________________ Sign up for FREE email thanks to Rebuke at http://www.rebuke.eu.org Also, IP forwarding (yourchoice.ipf.rebuke.eu.org -> your ip) coming soon!