Installing sSMTP MTA (Mail Transfer Agent)
sSMTP is an extremely simple MTA to get mail off the system to a mail hub. It contains no suid-binaries or other dangerous things - no mail spool to poke around in, and no daemons running in the background. Mail is simply forwarded to the configured mailhost. Extremely easy configuration.
This is ideal for web servers to avoid running MTA daemons like sendmail, Exim and Postfix which use up resources on the server.
1. Install sSMTP (Note: Any previously installed MTA will be removed)
apt-get install ssmtp
Installing Postfix with MySql backend and SASL for SMTP authentication
Postfix is a free and open source mail transfer agent (MTA). It is intended as a fast, easy-to-administer, and secure alternative to the widely-used Sendmail MTA.
Install and configure Postfix
1. Install Postfix and SASL
apt-get install postfix postfix-mysql libsasl2-modules-sql sasl2-bin libsasl2-2 postfix-tls libpam-mysql
> Internet Site
> host.domain.com