163 & 126 Mail Error,is support IMAP4 ID extension ?

[CaiLong]

OS:Gentoo Linux
Version:roundcube 1.6.6 compiled with change-password enigma exif fileinfo ldap postgres ssl vhosts zip

when i click "Receiving Mail" it reminds me " Server Error:SELECT Unsafe Login. Please contact kefu@188.com for help"
i found help doc in http://help.mail.163.com/faqDetail.do?code=d7a5dc8471cd0c0e8b4b8f4f8e49998b374173cfe9171305fa1ce630d7f67ac2eda07326646e6eb0,it mentions that should take IMAP ID information when connecting to the server.
how can i do it?
Thank you