base_dir = /var/run/dovecot/ # dovecot运行目录
protocols = pop3 pop3s ＃ 使用协议
listen = * ＃ 监听连接进来的ip地址，* => 所有的IPV4，[::] => 所有的IPV6
disable_plaintext_auth = no
log_path = /var/log/dovecot.log ＃日志文件位置
info_log_path = /var/log/dovecot-info.log ＃ debug信息
log_timestamp = “%Y-%m-%d %H:%M:%S ” 
ssl_disable = yes
mail_location = maildir:/var/vmail/%u ＃用户的邮件目录位置，这里使用maildir方式存储
mail_privileged_group = mail
protocol imap {
}

protocol pop3 {
pop3_uidl_format = %08Xu%08Xv
}
protocol lda {
postmaster_address = postmaster@example.com
}
auth_verbose = yes # 认证详细日志
auth_debug = yes # 认证的debug信息打开，可以显示出SQL查询语句，正常后可关闭
auth_debug_passwords = yes ＃可以显示密码失败的详细信息，正常后可关闭
auth default {
mechanisms = plain login ＃认证机制
passdb pam {
}
passdb passwd-file {
args = /etc/dovecot/passwd ＃密码文件
}
userdb passwd {
}
userdb static {
args = uid=vmail gid=vmail home=/var/vmail/%u ＃这里的uid和gid需要可以访问/home/vmail邮箱目录
}
user = root
socket listen {
client {
path = /var/spool/postfix/private/auth-client ＃postfix需要连接到这个sock进行认证
mode = 0660
user = postfix
group = postfix
}
}
}
dict {
}
plugin {
}

user1@example.com:{PLAIN}user1’s password
user2@example.com:{PLAIN}user2’s password

dovecotpw -s ssha
Enter new password: foo
Retype new password: foo
{SSHA}dZ9TYI7DTM+J558QUBRAIMd/WCOoFGeU

joe:{SSHA}dZ9TYI7DTM+J558QUBRAIMd/WCOoFGeU

auth default {
mechanisms = plain login
passdb pam {
}
passdb sql {
args = /etc/dovecot/dovecot-sql.conf
}
userdb passwd {
}
userdb sql {
args = /etc/dovecot/dovecot-sql.conf
}
user = root
socket listen {
client {
path = /var/spool/postfix/private/auth-client 
mode = 0660
user = postfix
group = postfix
}
}
}

driver = mysql
connect = host=/tmp/mysql.sock dbname=postfix user=postfix 
password=mypassword
default_pass_scheme = MD5-CRYPT # 如果使用postfixadmin管理，需要用这个加密方式
password_query = SELECT username as user, password from mailbox WHERE username = ‘%u’
user_query = SELECT maildir, 501 AS uid, 501 AS gid FROM mailbox WHERE username = ‘%u’ ＃这里uid和gid需要可以访问帐号邮件存储目录

helo mail.xxx.net
250 mail.xxx.net
> auth login
334 VXNlcm5hbWU6
> dXNlcjFAZXhhbXBsZS5jb20= (Base64后的用户名：user1@example.com)
334 UGFzc3dvcmQ6
> Zm9vYmFy （Base64后的密码：foobar）
235 2.7.0 Authentication successful

220 mail.xxx.net ESMTP Postfix
> auth plain
334 
> AHVzZXIxQGV4YW1wbGUuY29tAGZvb2Jhcg== (Base64后的用户名和密码：\0user1@example.com\0foobar)
235 2.7.0 Authentication successful

inosin@mac:~ > ruby -rbase64 -e ‘puts Base64.encode64(“\0user1@example.com\0foobar”)’
AHVzZXIxQGV4YW1wbGUuY29tAGZvb2Jhcg==

inosin@mac:~ > ruby -rbase64 -e ‘puts Base64.encode64(“user1@example.com”)’
dXNlcjFAZXhhbXBsZS5jb20=

inosin@mac:~ > ruby -rbase64 -e ‘puts Base64.encode64(“foobar”)’
Zm9vYmFy