topic Re: Mail configuring in Operating System - Linux

Mail configuring

Daniel Ubeda — Thu, 28 Aug 2003 17:03:30 GMT

Hi,

I have some linux with sendmail and postfix, and I relay all mails to one exchange server.
I want to receive the linux mails in this format:
root.server1@domain.com.ar
root.server2@domain.com.ar

In this way I can identify the origin of the mails.

Are there any parameter in de sendmail.cf or main.cf to do this ???

thanks

Re: Mail configuring

Steven E. Protter — Thu, 28 Aug 2003 17:58:21 GMT

The Dj parameter in sendmail.cf should do the job.

Change it to
djroot.server2

save sendmail.cf

service sendmail restart

It could also be done with more effort in the macro file. sendmail.mc Thats a little advanced for this simple request.

SEP

Re: Mail configuring

Steven E. Protter — Thu, 28 Aug 2003 17:59:04 GMT

Correcting a typo here.

The Dj parameter in sendmail.cf should do the job.

Change it to
Djroot.server2

# Note the lack of spaces between the Dj and the name.

save sendmail.cf

service sendmail restart

It could also be done with more effort in the macro file. sendmail.mc Thats a little advanced for this simple request.

SEP

Re: Mail configuring

Daniel Ubeda — Thu, 28 Aug 2003 20:00:12 GMT

I put:

Djroot.server1

and the mail say:

from: root@root.server1

I think that is not possible insert any word between the username and the @.

thanks

Re: Mail configuring

Stuart Browne — Thu, 28 Aug 2003 22:26:57 GMT

So you want to force the "From" user's address?

Is this for *all* mail, or just from a specific process?

if the latter (and it's a root user), you can use the '-f' flag on sendmail to force the from address to be pretty much anything you want.

Otherwise, I'm not sure of a 'nice' way to mangle the 'username' (that's the bit infront of the @) without some serious CF hacking.

You might want to look at your sendmail references for that one.

Re: Mail configuring

Alexander Chuzhoy — Fri, 29 Aug 2003 05:09:27 GMT

edit /etc/mail/sendmail.mc -find the masquerading rule (quite easy -search for the word masquerade -capital letters) and update this file.
Then issue this command:
m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf

Re: Mail configuring

Kasper Haitsma — Fri, 29 Aug 2003 06:55:49 GMT

There are several approaches here. First of all, I can only speak about sendmail, I have no knowledge on postfix.

It seems you want masquerading -> set the DM
DMdomain.com.ar

Now if you want this scenario for all mails from root, add the folowing line in the section starting with "SHdrFromSMTP=31":

SHdrFromSMTP=31
#root masquerading
Rroot<@$w.$m> $@root.$w@$m
Rroot<@$w.$m.> $@root.$w@$m

The ruleset SHdrFromSMTP=31 is from a 8.11.1 sendmail.cf found on hp-ux. I am not sure what version of sendmail is on RH 9, but the rule set is present in RH7.2's 8.11.6

Some more free advise, document, how you built you sendmail.cf, and the modifiations made afterwards. In a next release, it might all change, and it is sometimes very hard to back track the changes made.

HTH
Kasper