GitHub repository: markheydon/mail-server-puppet
Primary language: Puppet
Description: Installs a postfix based mail server, complete with postfix (obviously), dovecot (for IMAP access), pop3d (for POP3 access), RainLoop (webmail), and email scanning solution via postgray, amavis and clam.  Postfix admin with ViMbAdmin; and server admin with ajenti