On Wed, Nov 12, 2008 at 12:33 PM, Jerry Geis <geisj@xxxxxxxxxxxxxxx> wrote:
> hi all, running centos 4.7 i686.
>
> I seem to have an o pen r elay sendmail server.
> How do I close it?
>
> I have the STRAIGHT centos install sendmail.mc file.
> Only thing I changed was:
> dnl DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
>
> so as to allow incoming email and not just localhost. however this seems to
> relay everyone.
>
> I looked at http://www.sendmail.org/tips/relaying but it just talks about
> (AFIKT)
> enabling specific relays to occur - not how to CLOSE the relaying.
>
> How do I close the relay?
>
Google is your friend - look for "closing an open relay...."
:-)
mhr
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