Postfix : Install2014/07/21 |
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Install Postfix to configure SMTP server.
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| [1] | Postfix is installed even if CentOS system was installed with [Minimal Install], but if Postfix is not, Install it first like follows. |
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[root@mail ~]# yum -y install postfix
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| [2] | This example shows to configure SMTP-Auth to use Dovecot's SASL function. |
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[root@mail ~]#
vi /etc/postfix/main.cf # line 75: uncomment and specify hostname myhostname = mail.srv.world
# line 83: uncomment and specify domain name mydomain = srv.world
# line 99: uncomment myorigin = $mydomain # line 116: change inet_interfaces = all
# line 164: add mydestination = $myhostname, localhost.$mydomain, localhost , $mydomain
# line 264: uncomment and specify your local network mynetworks = 127.0.0.0/8, 10.0.0.0/24
# line 419: uncomment (use Maildir) home_mailbox = Maildir/ # line 574: add smtpd_banner = $myhostname ESMTP
# add follows to the end # limit an email size with 10M message_size_limit = 10485760 # for SMTP-Auth smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = $myhostname smtpd_recipient_restrictions = permit_mynetworks, permit_auth_destination, permit_sasl_authenticated, reject systemctl restart postfix [root@mail ~]# systemctl enable postfix |
| [3] | If Firewalld is running, allow SMTP service. SMTP uses 25/TCP. |
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[root@dlp ~]# firewall-cmd --add-service=smtp --permanent success [root@dlp ~]# firewall-cmd --reload success |
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