<< * OK Microsoft Exchange Server 2003 IMAP4rev1 server version 6.5.6944.0 (ban-cn-exchng01.msexchange01.closedtest.intra)  ready.
>> 1 CAPABILITY
<< * CAPABILITY IMAP4 IMAP4rev1 IDLE LOGIN-REFERRALS MAILBOX-REFERRALS NAMESPACE LITERAL+ UIDPLUS CHILDREN AUTH=NTLM
<< 1 OK CAPABILITY completed.
>> 2 LOGIN prakash prakash
<< 2 NO Logon failure: unknown user name or bad password.
