Adding default domain to outgoing mail

[Earl Locken]

Currently we have some users who want to have e-mail to "user" delivered to "user@localdomain.com". That way the users can receive e-mail in one spot and not have to check individual machines.

We are using sendmail on HP-UX 11 and 11i systems to forward mail to a central server running MS Exchange. To complicate things, the Exchange servers can't assume the local domain because they handle several different domains. I could use a user DB, but it seems to me it would be difficult to maintain across all the servers.

Is this something I should try to do with sendmail? Is it easy to get sendmail to apply a defalt domain to the recepient's address? The sendmail.cf file has been changed to set DR and DS to the MX record for the Exchange servers, and we use DM to masquerade our internal domain name to a consistent external one. The DM macro affects the From address and header. Is there something equivalent for the To and recepient? Would I have to change sendmail's rewrite rules?
--
Earl Locken
elocken@petro-canada.ca

[Steven E. Protter]

Easiset:

in sendmail.cf

Djlocaldomain.com

/sbin/init.d/sendmail stop
/sbin/init.d/sendmail start

You can also do it with the system hostname.

in /etc/rc.config.d/netconf

change hostname=servername

to

hostname.localdomain.com

This will not work if any portion of the name exceeds 8 characters.

You can also do it with sendmail m4 macro programming in the /usr/newconfig/etc/mail/cf/cf/generic-hpux10.cf

file. Thats where you should do your macro programming.

masquerade will work.

Here is a script that does the m4 macro programming and gen_cf work as well.

http://www.hpux.ws/buildmail.hpux.ws

SEP

[Geoff Wild]

Hey Earl - Geoff here....

If I understand you correctly...you want mail sent to "unix" id to go to user@yourdomian.com.

You can do that with perhaps .forward files or with the alias file:

joe: joe@yourdomain.com

Rgds...Geoff

[Geoff Wild]

Steven - Dj might work - but, if I understand it correctly - then email will work to all users who have a Unix account - but if you try to send to someone in the company that doesn't have an Unix id - you will get something like " sendmail[123]: 4330: --> 550 ... User unknown"...because "yourcompany.com" is fully locally managed by sendmail....

Have to test this....

Rgds...Geoff

[Geoff Wild · Accepted solution]

Tested the Dj - doesn't work - aliases does....

I did find this on page 398 of Sendmail book:

F=C
Add @domain to recipient

The F=C flag causes sendmail to append an @domain extension to any recipient which lacks one...

However, I can't seem to figure out how to implement - tried modifying the Mlocal as well as Ruleset 96.....

There is a warning - stating that F=C should be avoided for local delivery...

Rgds...Geoff

[Earl Locken]

The C flag seems to be just what I wanted. If I add it to the flags for the Mrelay mailer messages will get the default domain name. Thanks!