[CentOS] email Server for CentOS 7
Kenneth Porter
shiva at sewingwitch.com
Sat Sep 29 21:44:47 UTC 2018
Read up on Postfix (SMTP) and Dovecot (POP3 and IMAP). (Sendmail is
available as an alternative to Postfix.)
Additional services you'll want include MIMEDefang (general filter
management), SpamAssassin (anti-spam), and ClamAV (anti-virus scanning).
Other useful services include OpenDKIM (validates that mail really came
from the domain it claims to have come from), Roundcube (web-based email
client), and Certbot (acquire a LetsEncrypt cert for your mail servers).
You might want OpenLDAP for authentication, identity management, and
address books. Fail2ban can help keep the script kiddies out of your
services.
Running a mail server requires knowledge of many different services and
awareness of many security issues. You have your work cut out for you.
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