Roundcube無法登入

修改/etc/dovecot/conf.d/10-auth.conf
auth_username_format = %n

參考http://webcache.googleusercontent.com/search?q=cache:LivXu84v2C8J:www.extmail.org/forum/viewthread.php%3Ftid%3D8425+roundcube+%E7%99%BB%E5%85%A5+%3D%25n&cd=1&hl=zh-TW&ct=clnk&gl=tw