thank you very much for your kindly help it works
but I still want to get more info about how to use curl imap
I only find this aritcle http://curl.haxx.se/mail/lib-2013-03/0104.html
is there any other aritcle or app demo imap mail ? thanks a lot

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** [bugs:#1257] can not get imap inbox and send box list**
**Status:** open
**Labels:** imap 
**Created:** Mon Jul 15, 2013 04:48 PM UTC by sckalman
**Last Updated:** Mon Jul 15, 2013 08:43 PM UTC
**Owner:** Steve Holme
can not get imap mail list use  imap://user:password_at_mail.example.com/INBOX - Performs a folder list on the user's inbox 
use  pop I can get 4 mails
C:\>curl pop3://m18367258068:sc.002513_at_pop.126.com
1 2756500
2 2756498
3 2756497
4 4917
but I can get mail use imap
C:\>curl imap://m18367258061:password_at_imap.126.com/
* LIST () "/" "INBOX"
* LIST (\Drafts) "/" "&g0l6P3ux-"
* LIST (\Sent) "/" "&XfJT0ZAB-"
* LIST (\Trash) "/" "&XfJSIJZk-"
* LIST (\Junk) "/" "&V4NXPpCuTvY-"
* LIST () "/" "&dcVr0pCuTvY-"
C:\>curl imap://m18367258061:password_at_imap.126.com/INBOX
* LIST () "/" "INBOX"
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