I have Exchange 2003 service pack 1 installed on windows server 2003 service
pack1.
I created a universal group(Accounting) and its GROUP TYPE is distribution.
I  add some users to this universal group (Accounting).
I see this group in my Global Address List in Outlook 2003  however when I
try to send an email to this group get an email bounce back and gets an error:
Your message did not reach some or all of the intended recipients.

the following recipient(s) could not be reached:

     !Accounting on 8/30/2005 12:17 PM
           550 sorry, no mailbox here by that nameI have exchange 2003
service

I have created 5 other groups similar like this and and same error gets when
try to send an email to either of them.
Could someone solve my issue that why I cant send emails to these groups.