Postfix

Good infos about postfix:

http://www.postfix.org/STANDARD_CONFIGURATION_README.html

http://www.howtoforge.com/virtual-users-and-domains-postfix-courier-mysql-centos5.1-p2

http://www.gentoo.org/doc/en/virt-mail-howto.xml

http://en.gentoo-wiki.com/wiki/Dovecot_Postfix_Virtual

http://en.gentoo-wiki.com/wiki/Postfix

http://en.gentoo-wiki.com/wiki/Mail_server_using_Postfix_and_Dovecot

http://en.gentoo-wiki.com/wiki/Virtual_mail_server_using_Postfix,_Courier_and_PostfixAdmin

http://en.gentoo-wiki.com/w/index.php?title=Special:Search&ns0=1&ns4=1&ns100=1&ns102=1&redirs=0&search=postfixadmin&limit=500&offset=0

http://codepoets.co.uk/2009/postfixadmin-setupinstall-guide-for-virtual-mail-users-on-postfix/

postfix -> main.cf -> http://www.postfix.org/postconf.5.html

/etc/postfix/sslcert

postconf -a

(SASL support in the SMTP server)

postconf -A

(SASL support in the SMTP+LMTP client)