[CentOS] Mail Server Guides

On 3/1/19 9:53 AM, Ben Archuleta wrote:
> Hello All,
> 
> 
> I need to set up a new mail server to replace an aging CentOS 6.3 mail server. I was wondering what were some of the best guides on the web for Postfix (Maildir), Spamassassin, ClamAV, Dovecot?
> 

Probably not what you are looking for and it still has bugs, but I just 
(within last five days) started this project for securing outbound SMTP 
from a Postfix server, taking DANE, MTA-STS, and STARTTLS Everywhere 
policies into consideration.

One thing I will note, don't use the Postfix that ships with CentOS 7.x. 
It was fine when 7.0 shipped, but you really want to be using 3.2 or 
newer now.