Install/Configure Postfix2015/01/19 |
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This is How to Build SMTP Server with Postfix.
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| [1] | Install/Configure Postfix |
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[root@mail ~]#
yum -y install postfix
[root@mail ~]#
vi /etc/postfix/main.cf # line 70: uncomment and specify hostname myhostname = mail.srv.world
# line 77: uncomment and specify domain name mydomain = srv.world
# line 93: uncomment myorigin = $mydomain # line 110: change inet_interfaces = all
# line 155: add mydestination = $myhostname, localhost.$mydomain, localhost , $mydomain
# line 255: uncomment and specify LAN mynetworks = 127.0.0.0/8, 10.0.0.0/24
# line 410: uncomment (use Maildir) home_mailbox = Maildir/ # line 536: uncomment; line 537: add header_checks = regexp:/etc/postfix/header_checks body_checks = regexp:/etc/postfix/body_checks
# line 562: add smtpd_banner = $myhostname ESMTP
# add at the bottom # limit an email size 5M message_size_limit = 5242880 # limit mailbox 100M mailbox_size_limit = 104857600
# for SMTP-Auth setting smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth-client 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
[root@mail ~]#
vi /etc/postfix/header_checks # add at the head # reject if email address is empty /^From:.*<#.*@.*>/ REJECT
/^Return-Path:.*<#.*@.*>/ REJECT
[root@mail ~]#
vi /etc/postfix/body_checks # reject if includes 'example.com' in mail body /^(|[^>].*)example.com/ REJECT
/etc/rc.d/init.d/sendmail stop Shutting down sm-client: [ OK ] Shutting down sendmail: [ OK ] [root@mail ~]# chkconfig sendmail off
[root@mail ~]#
alternatives --config mta # change default MTA
There are 2 programs which provide 'mta'.
Selection Command----------------------------------------------- *+ 1 /usr/sbin/sendmail.sendmail 2 /usr/sbin/sendmail.postfix
Enter to keep the current selection[+], or type selection number:
[root@mail ~]# 2 # switch to postfix /etc/rc.d/init.d/postfix start Starting postfix: [ OK ] [root@mail ~]# chkconfig postfix on |
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