CentOS 7.2下安装部署邮件服务器(Postfix)的步骤详解

本文主要介绍的是在CentOS 7.2安装部署邮件服务器(Postfix)的相关内容，分享出来供大家参考学习，下面来看看详细的介绍：

Postfix 是一种电子邮件服务器，它是由任职于IBM华生研究中心（T.J. Watson Research Center）的荷兰籍研究员Wietse Venema为了改良sendmail邮件服务器而产生的。最早在1990年代晚期出现，是一个开放源代码的软件。

注意：以下所有配置的命名都是根据主机的hostname变量来配置的，如果hostname更换了的话，需要重新生成证书。

生成ssl证书

1、生成证书的脚本代码

以hostname为命名生成证书，运行脚本后需输入四次相同密码(密码须包含数字和字母)

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									#!/bin/sh

									rm -rf $(hostname).*

									openssl genrsa -des3 -out $(hostname).key 1024

									SUBJECT="/C=US/ST=Mars/L=iTranswarp/O=iTranswarp/OU=iTranswarp/CN=$(hostname)"

									openssl req -new -subj $SUBJECT -key $(hostname).key -out $(hostname).csr

									mv $(hostname).key $(hostname).origin.key

									openssl rsa -in $(hostname).origin.key -out $(hostname).key

									openssl x509 -req -days 3650 -in $(hostname).csr -signkey $(hostname).key -out $(hostname).crt

									cp $(hostname).crt /etc/pki/tls/certs/$(hostname).crt

									cp $(hostname).key /etc/pki/tls/certs/$(hostname).key

									echo "the key path:/etc/pki/tls/certs/$(hostname).key"

									echo "the crt path:/etc/pki/tls/certs/$(hostname).crt"

									rm -rf $(hostname).*

Postfix安装及配置

安装

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									yum -y install postfix

配置

vim /etc/postfix/main.cf

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									# line 75: uncomment and specify hostname

									myhostname = $(hostname)

									# line 83: uncomment and specify domain name

									mydomain = test.cn

									# 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 mailboxdir)

									home_mailbox = mailbox/

									# line 574: add

									smtpd_banner = $myhostname ESMTP

									# 在配置文件尾部追加以下内容

									# limit an email size for 10M

									message_size_limit = 10485760

									# limit a mailbox for 1G

									mailbox_size_limit = 1073741824

									# 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

									smtpd_use_tls = yes

									smtpd_tls_cert_file = /etc/pki/tls/certs/$(hostname).crt

									smtpd_tls_key_file = /etc/pki/tls/certs/$(hostname).key

									smtpd_tls_session_cache_database = btree:/etc/postfix/smtpd_scache

vim /etc/postfix/master.cf

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									# line 26-28: uncomment

									smtps  inet n  -  n  -  -  smtpd

									 -o syslog_name=postfix/smtps

									 -o smtpd_tls_wrappermode=yes

Dovecot 安装及配置

安装

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									yum -y install dovecot

配置

vim /etc/dovecot/dovecot.conf

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									# line 24: uncomment

									protocols = imap pop3 lmtp

									# line 30: uncomment and change ( if not use IPv6 )

									listen = *

vim /etc/dovecot/conf.d/10-auth.conf

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									# line 10: uncomment and change ( allow plain text auth )

									disable_plaintext_auth = no

									# line 100: add

									auth_mechanisms = plain login

vim /etc/dovecot/conf.d/10-mail.conf

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									# line 30: uncomment and add

									mail_location = maildir:~/Maildir

vim /etc/dovecot/conf.d/10-master.conf

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									# line 96-98: uncomment and add like follows

									# Postfix smtp-auth

									unix_listener /var/spool/postfix/private/auth {

									 mode = 0666

									 user = postfix

									 group = postfix

									}

vim /etc/dovecot/conf.d/10-ssl.conf

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									# line 8: change

									ssl = yes

									# line 14,15: specify certificates

									ssl_cert = </etc/pki/tls/certs/$(hostname).crt

									ssl_key = </etc/pki/tls/certs/$(hostname).key

运行

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									systemctl restart postfix

									systemctl enable postfix

									systemctl start dovecot

									systemctl enable dovecot

									firewall-cmd --add-service=smtp --permanent

									firewall-cmd --add-port={110/tcp,143/tcp} --permanent

									firewall-cmd --add-service={pop3s,imaps} --permanent

									firewall-cmd --add-port=465/tcp --permanent

									firewall-cmd --reload

邮件日志报告pflogsumm

安装

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									yum -y install postfix-perl-scripts

查看

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									perl /usr/sbin/pflogsumm -d yesterday /var/log/maillog

每天1:00AM 定时发送邮件日志摘要到根

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									crontab -e

									00 01 * * * perl /usr/sbin/pflogsumm -e -d yesterday /var/log/maillog | mail -s 'Logwatch for Postfix' root

总结

以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流，谢谢大家对服务器之家的支持。

原文链接：https://hanxv.cn/archives/90.html

CentOS 7.2下安装部署邮件服务器(Postfix)的步骤详解

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