dovecot+mysql如何搭建郵件云服務器

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1.[root@westos-mail ~]# yum install dovecot-mysql.x86_64 -y#dovecot的插件，讓此軟件可以識別mysql###

2.[root@westos-mail ~]# vim /etc/dovecot/conf.d/10-auth.conf     #認證文件

123 !include auth-sql.conf.ext        #同意mysql認證

3.cp /usr/share/doc/dovecot-2.2.10/example-config/dovecot-sql.conf.ext         /etc/dovecot/dovecot-sql.conf.ext    #生成dovecot讀取mysql的配置

4.[root@westos-mail ~]# vim /etc/dovecot/dovecot-sql.conf.ext     #修改配置

32 driver = mysql    #數據庫類型

71 connect = host=localhost dbname=email user=postuser password=postuser     #登錄（連接查詢）的庫、用戶、密碼

78 default_pass_scheme = PLAIN    #默認認證方式為明文

108   SELECT username, domain, password \    #查詢密碼匹配

109   FROM emailuser WHERE username = '%u' AND domain = '%d'

125 user_query = SELECT maildir, 666 AS uid, 666 AS gid FROM emailuser WHERE username = '%u'    #查詢郵件內容

5.[root@westos-mail ~]# vim /etc/dovecot/conf.d/10-mail.conf

168 first_valid_uid = 666    #郵件文件查詢用戶

175 first_valid_gid = 666

30 mail_location = maildir:/home/vmail/%d/%n    #郵件指定位置

6.[root@westos-mail ~]# systemctl restart dovecot.service

測試：

[root@westos-mail ~]# telnet  172.25.254.113 110

Trying 172.25.254.113...

Connected to 172.25.254.113.

Escape character is '^]'.

+OK [XCLIENT] Dovecot ready.

user lee@lee.com

+OK

pass lee

+OK Logged in.

quit

+OK Logging out.

Connection closed by foreign host

####空殼郵件####

空殼：

 別人看見的是這臺“假主機”，炮灰。

 對外顯示與真實機相同，別人發送的郵件表象給它，實則是它轉給真是主機。

1.[root@mail ~]# vim /etc/postfix/main.cf  

 76 myhostname = qq-mail.qq.com    #主機名

 83 mydomain = qq.com    #域名

 99 myorigin = westos.com    #真實云服務器所在的域

 116 inet_interfaces = all

 119 inet_protocols = all

 164 mydestination =    #不接受任何郵件

 316 relayhost = 172.25.254.113    #轉發到真實的郵件云服務器

2.[root@mail ~]# systemctl restart postfix.service

測試：

發送端：

[root@qq-mail ~]# mail root@westos.com

Subject: wq

521

,

.

EOT

[root@qq-mail ~]# mail

No mail for root

[root@qq-mail ~]# mailq

Mail queue is empty

真實的郵件云服務器端：

[root@westos-mail ~]# mail

Heirloom Mail version 12.5 7/5/10.  Type ? for help.

"/var/spool/mail/root": 2 messages 1 new

    1 westos@westos.com     Mon May 22 05:52  19/573   "hah"

>N  2 root                  Wed May 31 05:15  22/724   "wq"

& 2

Message  2:

From root@westos.com  Wed May 31 05:15:45 2017

Return-Path: <root@westos.com>

X-Original-To: root@westos.com

Delivered-To: root@westos.com

Date: Wed, 31 May 2017 05:15:45 -0400

To: root@westos.com

Subject: wq

User-Agent: Heirloom mailx 12.5 7/5/10

Content-Type: text/plain; charset=us-ascii

From: root@westos.com (root)

Status: R

521

,

& q

Held 2 messages in /var/spool/mail/root

You have mail in /var/spool/mail/root

[root@westos-mail ~]# 

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