[TriLUG] sendmail header question

[Jon Carnes]

You can also "fake" who you are by using the "Dj<domain_name>" option in
sendmail.cf.  I do this with servers that are running on internal
networks protected by NAT firewalls.  Works a charm.

Example:
  Djtrilug.org

Now stop/restart sendmail and all your mail will be seen as coming from
"trilug.org".

If you want to include your machine's hostname, you can either hard code
it in:
  Djmail.trilug.org

or you can stick the $w variable into the line:
  Dj$w.trilug.org

Should I include that in my Sendmail howto?
  http://www.trilug.org/~jonc/mailserver

Jon

===
On Fri, 2003-03-28 at 17:14, Jeremy Portzer wrote:
> On Fri, 2003-03-28 at 16:42, Turnpike Man wrote:
> > oh crappers... and my HELO used to answer properly too... did the sendmail
> > update for that security thing do this to me!  ACK!  thanks, David M.
> > 
> 
> After changing the hostname in /etc/sysconfig/network, you'll also need
> to set it with the "hostname" command (see man page) or reboot the
> computer.  If you don't reboot, be sure to restart sendmail after
> running "hostname."
> 
> Also, regarding the localhost.localdomain in the headers -- are you
> using fechmail to retrieve your mail, or a similar system?
> 
> --Jeremy
>  
> -- 
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