Dovecot+mysql configuration and the method of building mail cloud server
Let's learn about dovecot+mysql configuration and how to build an email cloud server. I'm sure you will benefit a lot after reading it. I hope you want this short article about dovecot+mysql configuration and how to build an email cloud server.
Dovecot+mysql
One configuration
1 plug-in for yum install dovecot-mysql.x86_64-y###dovecot so that this software can recognize mysql###
2 vim / etc/dovecot/conf.d/10-auth.conf # Edit the authentication file #
Content:
123! include auth-sql.conf.ext### supports mysql authentication #
3 configuration for cp / usr/share/doc/dovecot-2.2.10/example-config/dovecot-sql.conf.ext / etc/dovecot/dovecot-sql.conf.ext### to generate dovecot to read mysql #
4 vim / etc/dovecot/dovecot-sql.conf.ext
Content:
32 driver = mysql### database type #
71 connect = host=localhost dbname=email user=postuser password=postuser### connection query library, user, password #
78 default_pass_scheme = PLAIN### default authentication method is plaintext #
107 password_query =\ # query password matching #
108 SELECT username, domain, password\
109 FROM emailuser WHERE username ='% u 'AND domain ='% d'
125 user_query = SELECT maildir, 666 AS uid, 666 AS gid FROM emailuser WHERE username ='% uplink email # query email content #
5 vim / etc/dovecot/conf.d/10-mail.conf
Content:
168 first_valid_uid = 666 customers # email file query user identity #
175 first_valid_gid = 666
30 mail_location = maildir:/home/vmail/%d/%n### specify email location #
6 systemctl restart dovecot.service
Test:
[root@foundation78 Desktop] # telnet 172.25.254.112 110
Trying 172.25.254.112...
Connected to 172.25.254.112.
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.
You can test directly in thunderbird:
Two-shell mail
1) null client
1 vim / etc/postfix/main.cf
Content:
Mydomain = example.com### domain #
Myorigin = the domain where westos.com### is disguised as a real mail cloud server #
Myhostname = mail.example.com### hostname #
Mydestination = # is empty and does not accept email #
Relayhost = 172.25.254.112 email # forwarded to the real email CVM #
2 systemctl restart postfix.service
3 Test:
Shell mail cloud server:
[root@mail ~] # mail root@example.com
Subject: dskjaf
Skdja
.
EOT
[root@mail ~] # mailq
Mail queue is empty
[root@mail ~] # mail
No mail for root
Real email CVM #
[root@westos-mail ~] # mail
Heirloom Mail version 12.5 7-5-10. Type? For help.
"/ var/spool/mail/root": 3 messages 3 new
N 1 root Sat May 27 23:23 21 amp 753 "hfue"
N 2 root Sat May 27 23:23 21amp 757 "hjk"
N 3 root Sat May 27 23:24 21 amp 752 "dskjaf"
& 3
Message 3:
From root@mail.example.com Sat May 27 23:24:11 2017
Return-Path:
X-Original-To: root@example.com
Delivered-To: root@example.com
Date: Sat, 27 May 2017 23:24:08-0400
To: root@example.com
Subject: dskjaf
User-Agent: Heirloom mailx 12.5 7-5-10
Content-Type: text/plain; charset=us-ascii
From: root@mail.example.com (root)
Status: R
Skdja
& Q
Held 3 messages in / var/spool/mail/root
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