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。
这篇文章主要为大家详细介绍了 CentOS 7.2 如何部署邮件服务器 Postfix, 具有一定的参考价值,感兴趣的小伙伴们可以参考一下
一、Postfix 简介
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。
Postfix 官方网站:{aa2aa}
Postfix 下载地址:{aa1aa}
二、Postfix 安装
安装 Postfix 以配置 SMTP 服务器
[1] 即使 CentOS 系统安装了 [最小安装],也会安装 Postfix,但如果 Postfix 不安装,请先安装它,如下所示。
[root@linuxprobe ~]# yum -y install postfix
[2] 此示例显示配置 SMTP-Auth 以使用 Dovecot 的 SASL 函数。
- [root@linuxprobe~]#vi / etc / postfix / main.cf#line 75 : uncomment and specify hostname myhostname = linuxprobe.srv.world#line 83 : uncomment and specify domain name mydomain = srv.world#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#add follows to the end#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[root@linuxprobe~]#systemctl restart postfix[root@linuxprobe~]#systemctl enable postfix
[3] 如果 Firewalld 正在运行,请允许 SMTP 服务。 SMTP 使用 25 / TCP。
- [root@dlp~]#firewall - cmd--add - service = smtp--permanent success[root@dlp~]#firewall - cmd--reload success
三、Dovecot 安装
安装 Dovecot 以配置 POP / IMAP 服务器
[1] 安装 Dovecot.
[root@linuxprobe ~]# yum -y install dovecot
[2] 此示例显示配置为向 Postfix 提供 SASL 功能 .
- [root@linuxprobe~]#vi / etc / dovecot / dovecot.conf#line 24 : uncomment protocols = imap pop3 lmtp#line 30 : uncomment and change(
- if not use IPv6) listen = *[root@linuxprobe~]#vi / etc / dovecot / conf.d / 10 - auth.conf#line 10 : uncomment and change(allow plain text auth) disable_plaintext_auth = no#line 100 : add auth_mechanisms = plain login[root@linuxprobe~]#vi / etc / dovecot / conf.d / 10 - mail.conf#line 30 : uncomment and add mail_location = maildir: ~ / Maildir[root@linuxprobe~]#vi / etc / dovecot / conf.d / 10 - master.conf#line 96 - 98 : uncomment and add like follows#Postfix smtp - auth unix_listener /
- var / spool / postfix / private / auth {
- mode = 0666 user = postfix group = postfix
- } [root@linuxprobe~]#vi / etc / dovecot / conf.d / 10 - ssl.conf#line 8 : change(not require SSL) ssl = no[root@linuxprobe~]#systemctl start dovecot[root@linuxprobe~]#systemctl enable dovecot
[3] 如果 Firewalld 正在运行,请允许 POP / IMAP 服务。 POP 使用 110 / TCP,IMAP 使用 143 / TCP.
- [root@vdevops~]#firewall - cmd--add - port = {
- 110 / tcp,
- 143 / tcp
- }--permanent success[root@vdevops~]#firewall - cmd--reload success
四、SSL 设置
配置 SSL 以加密连接
[1] 首先创建证书,传送门:{aa0aa}
[2] 为 SSL 配置 Postfix 和 Dovecot。
- #add to the end smtpd_use_tls = yes smtpd_tls_cert_file = /etc/pki / tls / certs / server.crt smtpd_tls_key_file = /etc/pki / tls / certs / server.key smtpd_tls_session_cache_database = btree: /etc/postfix / smtpd_scache[root@linuxprobe~]#vi / etc / postfix / master.cf#line 26 - 28 : uncomment smtps inet n - n - -smtpd - o syslog_name = postfix / smtps - o smtpd_tls_wrappermode = yes[root@linuxprobe~]#vi / etc / dovecot / conf.d / 10 - ssl.conf#line 8 : change ssl = yes#line 14,
- 15 : specify certificates ssl_cert = </etc/pki / tls / certs / server.crt ssl_key = </etc/pki / tls / certs / server.key[root@linuxprobe~]#systemctl restart postfix dovecot
[3] 如果 Firewalld 正在运行,请允许 SMTPS / POP3S / IMAPS 服务。 SMTPS 使用 465 /
TCP,POP3S 使用 995 / TCP,IMAPS 使用 993 / TCP。
- [root@vdevops~]#firewall - cmd--add - service = {
- pop3s,
- imaps
- }--permanent success[root@vdevops~]#firewall - cmd--add - port = 465 / tcp--permanent success[root@vdevops~]#firewall - cmd--reload success
邮件日志报告:pflogsumm
安装 pflogsumm 这是 Postfix 日志报告工具
[1] 安装 postfix-perl-scripts 包 .
- [root@linuxprobe~]#yum - y install postfix - perl - scripts#generate log summary
- for yesterday[root@linuxprobe~]#perl / usr / sbin / pflogsumm - d yesterday /
- var / log / maillog Postfix log summaries
- for Jul 14 Grand Totals------------messages 2 received 5 delivered 0 forwarded 0 deferred 0 bounced 0 rejected(0 % ) 0 reject warnings 0 held 0 discarded(0 % ) 2879 bytes received 6572 bytes delivered 1 senders 1 sending hosts / domains 2 recipients 2 recipient hosts / domains Per - Hour Traffic Summary------------------------time received delivered deferred bounced rejected--------------------------------------------------------------------0000 - 0100 0 0 0 0 0 0100 - 0200 0 0 0 0 0 0200 - 0300 0 0 0 0 0 0300 - 0400 0 0 0 0 0 0400 - 0500 0 0 0 0 0 0500 - 0600 0 0 0 0 0 0600 - 0700 0 0 0 0 0 0700 - 0800 0 0 0 0 0 0800 - 0900 0 0 0 0 0 0900 - 1000 0 0 0 0 0 1000 - 1100 2 5 0 0 0 1100 - 1200 0 0 0 0 0 1200 - 1300 0 0 0 0 0 1300 - 1400 0 0 0 0 0 1400 - 1500 0 0 0 0 0 1500 - 1600 0 0 0 0 0 1600 - 1700 0 0 0 0 0 1700 - 1800 0 0 0 0 0 1800 - 1900 0 0 0 0 0 1900 - 2000 0 0 0 0 0 2000 - 2100 0 0 0 0 0 2100 - 2200 0 0 0 0 0 2200 - 2300 0 0 0 0 0 2300 - 2400 0 0 0 0 0 Host / Domain Summary: Message Delivery--------------------------------------sent cnt bytes defers avg dly max dly host / domain-----------------------------------------------3 4119 0 0.4 s 0.8 s srv.world 2 2453 0 0.1 s 0.1 s mail.srv.world Host / Domain Summary: Messages Received---------------------------------------msg cnt bytes host / domain--------------------------2 2879 mail.srv.world Senders by message count------------------------2 cent@mail.srv.world Recipients by message count---------------------------3 redhat@srv.world 2 cent@mail.srv.world Senders by message size-----------------------2879 cent@mail.srv.world Recipients by message size--------------------------4119 redhat@srv.world 2453 cent@mail.srv.world message deferral detail: none message bounce detail(by relay) : none message reject detail: none message reject warning detail: none message hold detail: none message discard detail: none smtp delivery failures: none Warnings--------tlsmgr(total: 6) 3 redirecting the request to postfix - owned data_directory /
- var / li...3 request to update table btree: /etc/postfix / smtpd_scache in non - ...Fatal Errors: none Panics: none Master daemon messages----------------------4 daemon started--version 2.10.1,
- configuration / etc / postfix 3 terminating on signal 15 1 reload--version 2.10.1,
- configuration / etc / postfix[root@linuxprobe~]#crontab - e#发送邮件日志摘要在AM每天1 : 00到根00 01 * **perl / usr / sbin / pflogsumm - e - d yesterday /
- var / log / maillog | mail - s 'Logwatch for Postfix'root
来源: http://www.phperz.com/article/16/1201/307192.html