Sendmail macro MASQUERADE_AS

[Alessandro Potenziani]

Hi all,

on one of our HP 11.00 box we need to modify the sendmail configuration in order to "mask" the domain of the outbound email.
Now sending an email is only possible within our local domain cause the mail's host name header is in the form: .intranetdomain.
We would it in the form: hostname.publicdomain so this one will be recognized by the recevivers over the internet.
I found the directive MASQUERADE_AS and tried to insert it on a sendmail.mc file then using m4 I tried to generate a sendmail.cf without success. Maybe I mitkaen somethnig.
Is there any soul who would help me providing a procedure/solution to solve our issue?

Many Thanx
Alessansro

[Gerald Taylor · Accepted solution]

You are on the right track. All you need to do is modify /etc/mail/sendmail.cf

search "Dj"

EXAMPLE:
# my official domain name
# ... define this only if sendmail cannot automatically determine your domain
Dj$w.mydomain.com

Gerald

[Alessandro Potenziani]

well,

this directive works well.
Now the domain of the senders id correct.
But is still impossible to receive mail across the internet because of the mail's header I suppose.

Microsoft Mail Internet Headers Version 2.0
Received: from webmail.publicdomain ([192.168.168.7]) by mail.publicdomain with Microsoft SMTPSVC(6.0.3790.211);
Tue, 28 Feb 2006 11:12:56 +0100
Received: from hostname.intranetdomain([192.168.168.1]) by webmail.ourpublicdomain with Microsoft


>> I THINK THIS IS THE PROBLEM...


SMTPSVC(6.0.3790.211);
Tue, 28 Feb 2006 11:12:55 +0100
Received: (from pr1adm@localhost)
by hostnameourintranetdomain(8.9.3 (PHNE_29773)/8.8.6) id LAA25149
for username@ourpublicdomain; Tue, 28 Feb 2006 11:19:01 +0100 (MET)
Date: Tue, 28 Feb 2006 11:19:01 +0100 (MET)


Any idea?

[Gerald Taylor]

Hello Alessansro,

Do you have MX record for your domain that you have added to masquerade as? This probably should have been the starting question.

Gerald

[Geoff Wild]

Should be something like:

MASQUERADE_AS(`yourdomain.com')

See:

http://www.sendmail.org/m4/masquerading.html

Should appear as the followinf in sendmail.cf:

DMyourdomain.com

Rgds...Geoff

[Alessandro Potenziani]

Dear gerald,


note that using conventional MAIL commands from the server connecting via telnet on port 25 of an external popmail works fine.
I suppose the issue regards sendmail on it's own.

Regards,
Alessandro.

[Alessandro Potenziani]

Thanx to all.
In addittion I implmented the samrthost solution for realying the mail to our mailserver (with the directive DS ).


ciaoooo!
Alessandro