First, installed Postfix and dovecot yum install postfix yum install dovecot Second, the Postfix mail server configuration vim /etc/postfix/main.cf myhostname = mail.ning.com mydomain = ning.com myorigin = $mydomain inet_interfaces = all inet_protocols = all mydestination = $mydomain mynetworks = 0.0.0.0/0 relay_domains = $mydestination home_mailbox = Maildir/ service postfix restart Localhost commented inet_interfaces = Third, use […]