Here is all the information required to get a properly configured mail server on your Mac running Lion. It will provide you with a mail server that is able to process the mail for an unlimited amount of domains and users. The only limitation is the size of your hard disk (for storage) and the bandwidth (for sending and receiving) you provide for it. It even comes with a web based mail client!

Basics:

• Compiling Postfix
• Compiling Dovecot
• Installing PostfixAdmin
• Create the directories for mail
• Configuring Postfix
• Configuring Dovecot
• Starting Postfix and Dovecot automatically
• Checking that the mail-server works
• Install Roundcube webmail

Spam prevention:

• Setting up greylisting with SQLGrey
• Starting SQLGrey automatically

Generic:

• Latest tested versions
• Location of all important files