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This article mainly introduces how to install postfix in Linux, which is very detailed and has certain reference value. Friends who are interested must finish it!

Install postfix

Postfix is a fast, easy to manage, high security mail sending service, which can cooperate with dovecot to achieve a perfect mailbox server.

1. Install postfix

[root@localhost ~] # rpm-qa | grep postfix

[root@localhost] # yum install-y postfix

Loaded plugins: fastestmirror, refresh-packagekit, security

Complete!

[root@localhost] #

2. Configure postfix and edit the configuration file "/ etc/postfix/main.cf"

[root@localhost ~] # gedit / etc/postfix/main.cf

Mydomain = domain name in david.cn / / dns

Myhostname = domain name in mailsrv.david.cn / / dns

Mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain

Inet_interfaces = all / / allow all network information to be processed

Inet_protocols = all / / allow ipv4 and ipv6

Mynetworks = 192.168.0.0amp 24, 127.0.0.0amp 8 / / allowed access to the ip segment

3. Set up firewall. Postfix uses port 25.

[root@localhost ~] # gedit / etc/sysconfig/iptables

-An INPUT-m state-- state NEW-m tcp-p tcp-- dport 25-j ACCEPT

[root@localhost ~] # service iptables restart

Iptables: set chain to policy ACCEPT:filter nat [OK]

Iptables: clear firewall rules: [OK]

Iptables: uninstalling module: [OK]

Iptables: apply firewall rules: [OK]

Iptables: load additional modules: nf_conntrack_ftp [OK]

4. Start the service

[root@localhost ~] # service postfix start

Start postfix: [OK]

[root@localhost ~] #

5. Connection test

[root@localhost ~] # telnet 192.168.0.113 25 / / ip is the local address and 25 is the port number

Trying 192.168.0.113...

Connected to 192.168.0.113.

Escape character is'^]'.

220 mailsrv.david.cn ESMTP Postfix

6. Send letters

[root@localhost ~] # mail david / / send a message to david to ensure that this user exists in the Linux system. The sender is the currently logged in user root.

Subject: test04 / / title

Hello david / / content

. / / end

EOT

[root@localhost ~] # mail-u david / / View the mail of user david

Heirloom Mail version 12.4 7-29-08. Type? For help.

"/ var/mail/david": 5 messages 1 new

1 root Thu Aug 16 17:07 21 amp 692 "test"

2 root Thu Aug 16 17:08 20 root Thu Aug 631 "test"

3 root Thu Aug 16 17:10 20 amp 602 "test"

4 root Fri Aug 17 08:15 20 amp 570 "test3"

> N 5 root Fri Aug 17 09:46 18amp 539 "test04" / / this letter was just received and sent by root users

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The above is all the contents of the article "how to install postfix in Linux". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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