Configure mailserver in linux

Configure mailserver in linux 1. configure yum installation tool ① enter the yum Directory [root @ bj ~] # Cd/etc/yum. repos. d ② configure yum. repo [root@bjyum.repos.d] # cprhel-debuginfo.repoyum.repo convert yum. modify repo to the following content: [root @ bj linux configure mail server 1. configure yum installation tool ① enter the yum Directory [root @ bj ~] # Cd/etc/yum. repos. d ② configure yum. repo [root @ bj yum. repos. d] # cprhel-debuginfo.repo yum. repo convert yum. modify the repo to [root @ bj yum. repos. d] # cat yum. repo [Base] name = Red Hat Enterprise Linux baseurl = file:///media/Server Enabled = 1 gpgcheck = 0 gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release ③ Mount the disc to the/media Directory [root @ bj ~] # Mount/dev/cdrom/media/2. install sendmail and dovecot [root @ bj ~] through yum # Yum install-y sendmail * ---- sendmail is responsible for sending emails (smtp protocol, port 25) [root @ bj ~] # Yum install-y dovecot * ---- dovecot is responsible for receiving emails (pop3 protocol, port 110, imap protocol, port 143) 3. configure sendmail ① cd/etc/mail m4 sendmail. cf> sendmail. mc ② vi sendmail. mc ---- query 127.0.0.1 and change it to 0.0.0.0 (sendmail is only responsible for sending local emails by default, and 0.0.0.0 will listen to emails from any address) ③ start sendmail service 1. modify/etc/hosts 192.168.6.130 bj.siqian.com (set the host name to the host name. domain name method, otherwise the email cannot be received) 2. modify/etc/sysconfig/network hostname = bj.siqian.com 3, then run hostname bj.siqian.com 4, start sendmail ser Vice sendmail start 5. View smtp [root @ bj ~] # Netstat-an | grep: 25 tcp 0 0 0.0.0.0: 25 0.0.0.0: * LISTEN ④ configure mail receipt [root @ bj ~] # Vi/etc/dovecot. conf: # protocols = imap pop3 lmtp ---- uncomment and change to protocols = imap pop3 lmtp ⑤ start dovecot service dovecotstart ----- view pop3, imap [root @ bj ~] # Netstat-an | grep: 110 tcp 0 0 ::: 110 ::: * LISTEN 4. send and receive emails ① write emails and send emails [root @ bj ~] # Mail-s "oracle" oracle test mail for oracle !!! Cc: The root Cc function is the shortcut key ctl + d ② to receive emails [root @ bj ~] # Mail Mail version 8.1 6/6/93. Type? For help. "/var/spool/mail/root": 5 messages 5 new> N 1 logwatch@localhost.l Thu Feb 2119:21 43/1563 "Logwatch for node1 (Linux) "N 2logwatch@localhost.l Fri Feb 2213:08 93/2804" Logwatch for node1 (Linux) "N 3logwatch@bj.siqian.com Mon Jul 1515: 08 95/2901" Logwatch for bj (Linux) "N 4logwatch@bj.siqian.com Mon Jul 1515: 32 54/1936 "Logwatch for bj.siqian.com (Linux)" N 5root@bj.siqian.com Mon Jul 1516: 21 17/557 "oracle" & 5 Message 5: From root@bj.siqian.com Mon Jul 15 16:21:14 2013 Date: Mon, 15 Jul 2013 16:21:14 + 0800 From: root To: oracle@bj.siqian.com Subject: oracle Cc: root@bj.siqian.com test mail for oracle !!! Change the oracle user to view the email [root @ bj mqueue] # su-oracle [oracle @ bj ~] $ Mail Mail version 8.1 6/6/93. Type? For help. "/var/spool/mail/oracle": 1 message 1 new> N 1 root@bj.siqian.com Mon Jul15 16:21:14 17/557 "oracle" & 1 Message 1: From root@bj.siqian.com Mon Jul 15 2013 Date: mon, 15 Jul 2013 16:21:14 + 0800 From: root To: oracle@bj.siqian.com Subject: oracle Cc: root@bj.siqian.com test mail for oracle !!!