[lug] linuxconf and sendmail config

[Greg Horne]

How and where do I turn off mail relaying on my sendmail server?  Yes, it IS 
on right now.  Most sites tell me how to turn it on, but not off.  Help.

Greg

>From: Nate Duehr <nate at natetech.com>
>Reply-To: lug at lug.boulder.co.us
>To: lug at lug.boulder.co.us
>Subject: Re: [lug] linuxconf and sendmail config
>Date: Wed, 17 Oct 2001 01:23:38 -0600
>
>telnet mail-abuse.net
>
>On Mon, Oct 08, 2001 at 08:20:26AM -0600, Scott A. Herod wrote:
> > > D. Stimits wrote:
> > >
> > > Scott Herod wrote:
> > > >
> > > > I just learned that it was possible to relay mail through
> > > > my sendmail daemon despite my telling linuxconf that there
> > > > were no valid relay hosts and clients.  This is with
> > > > sendmail 8.9.3 which should not do relay by default.  I'm
> > > > now trying to configure sendmail using sendmail.mc and
> > > > the m4 configuration tool.  Some links that I've discovered
> > > > are:
> > > >
> > > > http://ordb.org/faq/#how_to_close
> > > >
> > > > http://www.sendmail.org/m4/anti-spam.html
> > > >
> > > > Can someone suggest a link to a site that will test you
> > > > without blacklisting you if you fail ( like ordb.org does )?
> > > >
> > >
> > > Did you ever find a site that can test? I'm also curious how you 
>tested
> > > originally, or if it was just an article mentioning the possibility. 
>I,
> > > for one, have my sendmail's port closed to all outside sources, but 
>I'd
> > > still like to double-check it.
> > >
> > > D. Stimits, stimits at idcomm.com
> >
> > It seems that the best site for testing is http://orbz.org/ .
> > I think that they do still black-list you if you fail but
> > they also check other blacklisting sites so that if you get
> > on multiple lists you can find out without having to wait for
> > bounce messages.
> >
> > The way I found out was to get caught.  I'm annoyed that linuxconf
> > continued to tell me that I had no valid relay clients.  I also
> > checked to see whether the box had been compromised but could find
> > no evidence of that.  ( I'm gad that linuxconf is now gone.  Broken
> > sysadmin tools are worse than no tools. )
> >
> > ( Now if only I could find plumbing parts that even McGuckin's doesn't
> > carry.)
> >
> > Scott
> > _______________________________________________
> > Web Page:  http://lug.boulder.co.us
> > Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
>
>--
>Nate Duehr <nate at natetech.com>
>
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>Public Key available upon request, or at wwwkeys.pgp.net and others.
>_______________________________________________
>Web Page:  http://lug.boulder.co.us
>Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug


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