"may be forged" error on sendmail 8.8 HELP ..

[someone_4]

Hey everyone I have a sendmail question.
I have already looked at sendmai.org and other sources but I have yet to find anything on this issue. Fist of all this is CNR and sendmail related. When someone recieves an email, and right clicks to properties, then details..
This line comes up.
Received: from ourdomain.com ([00.00.00.00] (may be forged)
I have researched and someone told me they think that this may be normal. Since our email server can not perform reverse DNS lookups, it gives us the message saying it "may be forged".Since reverse DNS lookup tries to match your IP address to an email domain, and since that is not a feature of your email server, that message is displayed.
Now with this information this is what I found out from someone else:
It is not that our e-mail server cannot perform reverse DNS lookups. It is
actually trying to do that which consequently puts "forged" in the e-mail
header. The problem is that there are no reverse dns entries for the public
ip scopes in CNR on ns1.ourdomain.net and ns2.ourdomain.net. Three solutions:
1.) Do Dynamic DNS from CNR and have CNR update 24.X.X.X or 24.X.X.X
2.) Have 2 CNR servers doing dynamic DNS and scrap win2k DNS
3.) Manually or possibly through windows scripting, enter reverse dns
entries for the public ip scopes in CNR to ns1.ourdomain.net or
ns2.ourdomain.net
--------------------
Ok there is all the info that I have gathered.
Now here are my questions relating to this issue. First of all it is not affecting the mail going though. It is merly a cosmetic problem where it is not a good thing for the end user to see "may be forged". So here are my questions.1. Is there a way to turn off reverse DNS. would this affect anything else? and would that get rid of that error. 2.
Where is this "may be forged" error ? I looked in sendmail.cf 8.8 and it is not there. If I could find where this is comming from could I edit this to say something else or take it out?
Thanks in advance for your thoughts on this..

Richard

[someone_4]

Ohh this mail server has about 300 users on it now and growing.

[Kevin Wright]

My guess is that you would have to recompile sendmail for support without doing reverse DNS lookups..it does sound like this is your problem however. The error is generated by the sendmail binaries I assume. it is not displaying a text file which you can edit.