postfix: postfix (smtp mail transfer agent)
postfix: 
postfix: Postfix is a secure, flexible and powerful SMTP mail transfer agent
postfix: Postfix attempts to be fast, easy to administer, while at the same
postfix: time being sendmail compatible enough to not upset your users.
postfix: Postgrey is a Postfix policy server implementing greylisting.
postfix: 
postfix: Make sure you read the documentation about how to set this up,
postfix: especially the info about creating postfix user and groups in
postfix: /usr/doc/postfix-2.6.5/README.Slackware
postfix: