#yum install postfix
#vi /etc/postfix/main.cf
# 外部に存在しない内部DNSのための対策 myhostname = gabo.pr.j-inb.net mydomain = gabo.j-inb.net myorigin = $mydomain mydestination = $myhostname, localhost.$mydomain, $mydomain, localhost # OP25B対策 relayhost = [xxx.ne.jp] smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/authinfo smtp_sasl_security_options = noanonymous smtp_sasl_mechanism_filter = plain, login
#vi /etc/postfix/authinfo
[xxx.ne.jp] user:pass