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- iRedMail 版本号：0.8.7
- 使用哪个数据库存储用户帐号（OpenLDAP，MySQL，PostgreSQL）：mysql
- 使用的 Linux/BSD 发行版名称及版本号：centos 6.2
- 与您的问题相关的日志信息：
tail /var/log/maillog
Jun 26 17:07:47 mail roundcube: IMAP Error: Login failed for postmaster@test.com from 10.0.246.77. LOGIN: Internal error occurred. Refer to server log for more information. in /var/www/roundcubemail-1.0.1/program/lib/Roundcube/rcube_imap.php on line 184 (POST /mail/?_task=login?_task=login&_action=login)
Jun 26 17:08:47 mail roundcube: IMAP Error: Login failed for postmaster@test.com from 10.0.246.77. LOGIN: Internal error occurred. Refer to server log for more information. in /var/www/roundcubemail-1.0.1/program/lib/Roundcube/rcube_imap.php on line 184 (POST /mail/?_task=login?_task=login&_action=login)
Jun 26 17:11:04 mail roundcube: IMAP Error: Login failed for postmaster@test.com from 10.0.246.77. LOGIN: Internal error occurred. Refer to server log for more information. in /var/www/roundcubemail-1.0.1/program/lib/Roundcube/rcube_imap.php on line 184 (POST /mail/?_task=login?_task=login&_action=login)
Jun 26 17:11:08 mail roundcube: IMAP Error: Login failed for postmaster@test.com from 10.0.246.77. LOGIN: Internal error occurred. Refer to server log for more information. in /var/www/roundcubemail-1.0.1/program/lib/Roundcube/rcube_imap.php on line 184 (POST /mail/?_task=login?_task=login&_action=login)
Jun 26 17:11:09 mail roundcube: IMAP Error: Login failed for postmaster@test.com from 10.0.246.77. LOGIN: Internal error occurred. Refer to server log for more information. in /var/www/roundcubemail-1.0.1/program/lib/Roundcube/rcube_imap.php on line 184 (POST /mail/?_task=login?_task=login&_action=login)
Jun 26 17:11:50 mail roundcube: IMAP Error: Login failed for postmaster@test.com from 10.0.246.77. LOGIN: Internal error occurred. Refer to server log for more information. in /var/www/roundcubemail-1.0.1/program/lib/Roundcube/rcube_imap.php on line 184 (POST /mail/?_task=login?_task=login&_action=login)

[root@mail ~]# tail /var/log/dovecot.log
Jun 26 17:11:09 imap-login: Info: Login: user=<postmaster@test.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=2564, secured, session=<0Svckrn8XQB/AAAB>
Jun 26 17:11:09 imap(postmaster@test.com): Error: chdir(/var/vmail/vmail1/test.com/p/o/s/postmaster-2014.06.25.19.59.58//) failed: Permission denied (euid=2000(vmail) egid=2000(vmail) missing +x perm: /var/vmail/vmail1, dir owned by 0:0 mode=0700)
Jun 26 17:11:09 imap(postmaster@test.com): Error: chdir(/var/vmail/vmail1/test.com/p/o/s/postmaster-2014.06.25.19.59.58/) failed: Permission denied
Jun 26 17:11:09 imap(postmaster@test.com): Error: user postmaster@test.com: Initialization failed: Namespace '': stat(//var/vmail/vmail1/test.com/p/o/s/postmaster-2014.06.25.19.59.58//Maildir) failed: Permission denied (euid=2000(vmail) egid=2000(vmail) missing +x perm: //var/vmail/vmail1, dir owned by 0:0 mode=0700)
Jun 26 17:11:09 imap(postmaster@test.com): Error: Invalid user settings. Refer to server log for more information.
Jun 26 17:11:50 imap-login: Info: Login: user=<postmaster@test.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=2571, secured, session=<et9Jlbn8XwB/AAAB>
Jun 26 17:11:50 imap(postmaster@test.com): Error: chdir(/var/vmail/vmail1/test.com/p/o/s/postmaster-2014.06.25.19.59.58//) failed: Permission denied (euid=2000(vmail) egid=2000(vmail) missing +x perm: /var/vmail/vmail1, dir owned by 0:0 mode=0700)
Jun 26 17:11:50 imap(postmaster@test.com): Error: chdir(/var/vmail/vmail1/test.com/p/o/s/postmaster-2014.06.25.19.59.58/) failed: Permission denied
Jun 26 17:11:50 imap(postmaster@test.com): Error: user postmaster@test.com: Initialization failed: Namespace '': stat(//var/vmail/vmail1/test.com/p/o/s/postmaster-2014.06.25.19.59.58//Maildir) failed: Permission denied (euid=2000(vmail) egid=2000(vmail) missing +x perm: //var/vmail/vmail1, dir owned by 0:0 mode=0700)
Jun 26 17:11:50 imap(postmaster@test.com): Error: Invalid user settings. Refer to server log for more information.
====

https://xxxx/mail/?_task=login

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