We currently have a Linux box that is functioning as our POP & SMTP email server. It works fine, but the problem is that we currently host email accounts from several different domains. Ex./ computer.com, pc.com, linux.com etc. All the email user accounts are set up as popusers. The poblem arises when I want to create firstname.lastname@example.org & then email@example.com for a different customer . Because they are both in the same group, I have to call the second user joe2 or whatever. I know this is not the correct way to setup the accounts. There has to be a way to have each domain in its own "group". Right now, the DNS for the domain points to the Linux box, which then finds a user by username. I need to split up the email accounts for different domains. Please help.