How to configure and install postfix in linux

Postfix is the MTA software developed by Wietse Venema under the ibm gpl protocol. Postfix is an attempt by Wietse Venema to provide alternatives to the most widely used sendmail. Let's take a look at the postfix configuration and installation method.

Install Postfix

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Yum install postfix system-switch-mail

Set postfix

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Vi/etc/postfix/main. cf Myhostname = ha.xxx.kh.edu.tw Myorigin = $ myhostname Myorigin = xxx.kh.edu.tw Inet_interfaces = all # Inet_interfaces = local Mydestination = $ myhostname, localhost. $ mydomain, localhost Mynetworks = 163.32.X.0/24,127.0 .0.0/8 Relay_domains = $ mydestination

Start

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Vi/etc/rc. d/rc. local /Usr/sbin/postfix start

Install and set dovecot (Centos6.4)

Install software

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Yum-y install dovecot Cp/etc/dovecot. conf/etc/dovecot. conf. bak Vi/etc/dovecot. conf Protocols = pop3 Ssl_disable = yes

Modify the preset dovecot email receiving location

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Vi/etc/dovecot/conf. d/10-mail.conf Mail_location = mbox :~ /Mail: INBOX =/var/mail/% u Vi/etc/dovecot/conf. d/10-auth.conf Disable_plaintext_auth = no Auth_mechanic ISMs = plain login

Restart

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Service dovecot restart Chkconfig dovecot on

 
Set postfix SMTP Verification

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Vi/etc/postfix/main. cf Smtpd_sasl_auth_enable = yes Smtpd_sasl_security_options = noanonymous Broken_sasl_auth_clients = yes Smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination Chkconfig saslauthd on Service saslauthd restart

Virus filtering software Amavisd + Clamav Anti-Virus and Spam
Install clamav amavisd-new Software

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Yum-y install clamav amavisd-new Service clamd start Chkconfig -- level 3, 5 freshclam on Service amavisd start Chkconfig -- level 3, 5 amavisd on

Specified email server domain

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Vi/etc/amavisd. conf $ Mydomain = www. bKjia. c0m

Define a virus filtering service in master. cf.

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Vi/etc/postfix/master. cf Amavis unix--2 smtp-o smtp_data_done_timeout = 1200

Add the following settings

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127.0.0.1: 10025 inet n--smtpd -O content_filter = -O local_recipient_maps = -O relay_recipient_maps = -O smtpd_restriction_classes = -O smtpd_client_restrictions = -O smtpd_helo_restrictions = -O smtpd_sender_restrictions = -O smtpd_recipient_restrictions = permit_mynetworks, reject -O mynetworks = 127.0.0.0/8 -O strict_rfc821_envelopes = yes -O smtpd_error_sleep_time = 0 -O smtpd_soft_error_limit = 1001 -O smtpd_hard_error_limit = 1000

Content_filter parameter settings

Vi/etc/postfix/main. cf

Content_filter = amvis: [127.0.0.1]: 10024
Smtp inet... do not modify the middle column...