[Sunhelp] asking help from connectcom

[fmoussa]

Hi ,
i'm fairouz from connectcom(ISP) in casablanca, administrator system and
network,
we have two dns using solaris 2.5.1, and netra 2.3.1.
the problem that i have:
suppose that i created a domaine like "exchanges.co.ma", and i want to
send one
 message to "mills2 at exchanges.co.ma". Whene i do that, the error message
is:
 the original message was received at Tue, 31 Aug 1999 15:03:13 GMT
from localhost [127.0.0.1]

   ----- The following addresses had delivery problems -----
<mills at exchanges.co.ma>  (unrecoverable error)

   ----- Transcript of session follows -----
550 <mills at exchanges.co.ma>... Host unknown (Name server:
dns1.exchanges.co.ma.: no data known
can you help me please?