sendmail macro

[John Carver]

I need to relay mail from an HPUX server through a smtp server using sendmail. I have been told to create a new sendmail.cf using
m4. I have located the directories for m4 but
not sure what to do with it. I have browsed the O'Reilly book "Sendmail", but at this point
I need the "Cliff Note" version to get going on
this.

[Jeff Schussele · Accepted solution]

Hi John,

If you just want all mail coming out of this host to relay thru that SMTP server, then all you need do is define a SmartHost with the DS macro
Simply add

DSsmtphost.company.com

to the /etc/mail/sendmail.cf file & bounce sendmail
/sbin/init.d/sendmail stop
/sbin/init.d/sendmail start

And that should cover it.

HTH,
Jeff

[A. Clay Stephenson]

This is trivially easy and we don't need no stinkin' m4. All you need to do is edit /etc/mail/sendmail.cf (after making a copy in case you do something dumb) and add a "Smart" relay. You will actually fnd some comments in the file but here's what you do:

DSemail.acme.com

That will send all non-local email to email.acme.com for further handling.

You then cd to /sbin/init.d and
./sendmail stop
./sendmail start

and you should be done assuming you can resolve the hostname of your smart reley.

[W.C. Epperson]

One undertakes to contradict Clay with some trepidation, but if M4 configuration is the standard for his shop, he _may_ need the steenking thing. Else another admin following standards may blow away his DS setting by regenerating the .cf file from the .mc file.

So, to get your DS setting via M4, put SMART_HOST in your .mc file:

define(`SMART_HOST', `host.domain.')

A brief intro and sample of a .mc file is at:
http://www.sendmail.org/m4/intro.html

The main config page is:
http://www.sendmail.org/m4/readme.html

[Steven E. Protter]

Here is a are two possible ways to generate a sendmail.cf file from the sendmail.mc

1) run gen_cf. I think its a HP add on to sendmail, but it seems to work on my sandbox.
2) The script I'm attaching, which will probably require tweaking.


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