Re: sendmail relay
From: atse (dunggaze_at_yahoo.com)
Date: 12/01/03
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Date: Mon, 01 Dec 2003 16:59:11 GMT
Yes, this makes me feel comfortable.
"Dereck Martin" <damartin@gurus.homelinux.org> wrote in message
news:pan.2003.11.30.11.31.07.734346@gurus.homelinux.org...
> the second day I got my sendmail up and running my logwatch email came
> into my account and said... the same thing, just a diff IP addy.
>
> logically, I assume its a spammer with a massive mailer that cycles
> through ip address hoping to find a site that will deliver his worthless
> email to someone. as long as you don't have ur .conf setup to accept
> internet hosts u'll be fine.
>
>
>
>
> On Sat, 29 Nov 2003 20:14:07 +0000, atse wrote:
>
> > Thanks, I see.
> > What I am concerned is that the machine has enabled anonymous to attempt
to
> > send email through my server. As long as the rejection of relay has been
set
> > by default, I will feel save.
> >
> > Atse
> >
> > "ynotssor" <"ynotssor"> wrote in message
> > news:3fc82ffd_1@corp.newsgroups.com...
> >> "atse" <dunggaze@yahoo.com> wrote in message
> >> news:SnVxb.88011$X2W1.55994@news04.bloor.is.net.cable.rogers.com
> >>
> >> > I was confused with the end part of the 1st record "we do not relay"
> >> > and the next "relay=[210.106.36.47]", which is the same IP relay. I
> >> > thought this person should have sent out the email through my server.
> >> > And I found this occured many times that someone tried to relay their
> >> > emails through my email server. How can I prevent someone from
> >> > relaying their emails? Thanks
> >>
> >> You don't seem to understand that the email is *not* being relayed. The
> > log
> >> entries you posted indicate that. Since you top-posted I'm not going to
> > take
> >> the trouble of fixing it to show you again.
> >>
> >> As long as your machine is connected to the Internet with an SMTP
server
> >> listening on port 25 (or any port for that matter) with no other
> >> restrictions or filters, anyone in the world can connect to that port
and
> >> attempt to relay. Your server is correctly configured to reject such
relay
> >> attempts, and the log entries prove it.
> >>
> >> If you want to stop such relay attempts then unplug the box from the
> >> network. It's that simple.
> >>
> >>
> >> tony
> >>
> >> --
> >> use hotmail for any email replies
> >>
> >>
> >>
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>
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