E:\ReportMessenger\ApplicationServer>blat license.txt -to mail@hp.c
om -debug
Sending license.txt to mail@hp.com
Login name is email@hp.com
<<<getline<<< 220 g4t0017.houston.hp.com ESMTP Postfix

>>>putline>>> EHLO BBNERTWP1

<<<getline<<< 250-g4t0017.houston.hp.com
250-PIPELINING
250-SIZE
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN

>>>putline>>> MAIL From:<email@hp.com>

<<<getline<<< 250 2.1.0 Ok

>>>putline>>> RCPT To: <mail@hp.com>

<<<getline<<< 504 5.5.2 <BBNERTWP1>: Helo command rejected: need fully-qualified
 hostname

The mail server doesn't like the name mail@hp.com.
Have you set the 'To: ' field correctly?
>>>putline>>> QUIT

<<<getline<<< 221 2.0.0 Bye