[wplug] Keeping mail from going out

[Kevin Squire]

Dear list,

I am running Debian Sarge, with Exim4 installed on my main machine. 
This box is called "linuxbox"  I also have 2 other machines called
"kingpin" and "thinkpad".  They are also running Debian Sarge, but using
Exim v.3.  On all 3 boxs, I have it set up so that root at BOXNAME always
goes to kevin at BOXNAME, and that kevin at BOXNAME always goes to
kevin at linuxbox (my main machine).  This way, all cron mails, errors, etc
all show up at my main box, and I do not have to regularly log into the
other boxs.  I hope that all makes sense :-)

I use my ISP and a few free web-based emails servers to send and receive
mail with the outside world -- So I only need to setup Exim4 to receive
mail, but not send.  Right now when I send mail using Mutt (not
configured to use outside smtp server) I can send a message out, and it
comes back as:

  SMTP error from remote mailer after RCPT TO:<gentgeen at linuxmail.org>:
  host linuxmail-org.mr.outblaze.com [205.158.62.52]:
  504 <kevin at linuxbox>: No thank you rejected: need fully-qualified
address

I want to get an error, but I want to get it locally (from Exim4)
saying something along the lines of "sorry, no route to host" or "sorry,
no outgoing mail allowed" -- i.e. I do not even want the mail getting
out to linuxmail-org.mr.outblaze.com to reject.  Since I know little
about email servers, I don't want my box it unknowing become a spam bot.

Boy, I really hope all that made sense :-)

Anyway -- does anyone know either what changes I need to make to the
config file, or what options I need to use during "dpkg-reconfigure
exim4-config" 


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