Extended SMTP

When i first setup the server part 1 and part 2 i used the basic setting for postfix but soon found that i could reduce the amount of spam and load on the server by rejecting it before accepting it, i will do this by forcing mail servers that wanna deliver mail to me to be configured correctly and by using a few RBL (Real-time Blacklists).

Carrying on from Basic server setup - part 1 we will finish installing packages.

Now I install Postfix and Dovecot

yum install cyrus-sasl cyrus-sasl-devel cyrus-sasl-gssapi cyrus-sasl-md5 cyrus-sasl-plain postfix dovecot

Now i configure TLS and SMTP-AUTH

postconf -e 'smtpd_sasl_local_domain ='
postconf -e 'smtpd_sasl_auth_enable = yes'
postconf -e 'smtpd_sasl_security_options = noanonymous'
postconf -e 'broken_sasl_auth_clients = yes'