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What is the most scalable way to add new users in postfix? I don't necessarily want to create a new user in /etc/shadow just for email. I know I can use aliases but this does not solve the issue of creating an entirely new user that has email.

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2 Answers 2

up vote 6 down vote accepted

Youre looking to set up a postfix virtual server. This is extremely common, and if you google 'postfix virtual server' plus your distribution name, you'll likely come up with a guide.

But if you want to figure out everything yourself, the setting you want to start with is virtual_mailbox_maps.

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Just found it on postfix; thanks postfix.org/VIRTUAL_README.html –  josten Jan 12 '12 at 1:20

Here's a detailed tutorial to help you setup a mail server on Debian. It stores mail accounts in MySQL database, so that you don't need to create unix accounts anymore. http://workaround.org/ispmail

If you just need a no-cost mail server quickly and don't care about the technical mumbo-jumbo then this is the wrong place for you. There are ready solutions like iRedMail if you are in a hurry. iRedMail works on Red Hat Enterprise Linux, CentOS, Scientific Linux, Debian, Ubuntu, openSUSE, FreeBSD. http://www.iredmail.org/

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