There are instructions for configuring smail to rewrite your From field, in
the Debian FAQOMATIC (Courtesy of Daniel Gross <[EMAIL PROTECTED]> ):
<http://www.debian.org/fom/137.html>
> Hi Debian users,
> I'm using smail as my MTA and I have a problem:
> when sending a mail the from is jaca.cos.ufrj.br and not cos.ufrj.br as
> desired. I used smailconfig, selected the third option and put the server
> machine name (rio.cos.ufrj.br) and the from as desired cos.ufrj.br.
> Then I tried other mail and the problem persist.
> Have I to restart some service?
> Have a nice day, Paulo Henrique
>