Dear All, a friend of mine who has a small office want to have a configuration like this: * around 3 people can have full access to internet * around 1-2 people can just have email access (can send and receive email to any address) * the rest of the people in the company just can have internal email (can send and receive email just to/from the peer - on the same domain). I think I can use the squid to prevent the access using the browser, but what should I do to set the email configuration like that? I think I can install qmail for the MTA, but I don't know how to prevent several person just can send/receive email from the same domain, while the other can send/receive email to any address he wants to. Anybody kind enough to share how to do that? Thanks in advance for you help. -- Tanu --