I did some tests and the host 1.2.3.4 did indeed relay the message.
I can't seem to connect to orbital.inter7.com to test it.
Ken Jones wrote:
> I just ran the telnet test on my test qmail setup.
>
> >>> MAIL FROM:<[EMAIL PROTECTED]>
> <<< 250 ok
> >>> RCPT TO:<[EMAIL PROTECTED]>
> <<< 250 ok
> Relay test result
> Uh oh, host appeared to accept a message for relay.
> The host may reject this message internally, however
> Connection closed by foreign host.
>
> Qmail does reject it internally.
>
> Ken Jones
> Inter7
>
> John Newbigin wrote:
> >
> > I just received a message from the ORBS database. It seems that qmail
> > has a bug.feature which allows relaying of messages in the form
> > jn%it.swin.edu.au@[1.2.3.4]
> > Where 1.2.3.4 is the IP address of my mail server, not for
> > it.swin.edu.au. (I don't want everyone on the list to try it :).
> >
> > The machine should accept mail for 1.2.3.4, but the message is actualy
> > sent to [EMAIL PROTECTED]
> > The mail relay should only accept mail for [EMAIL PROTECTED]
> >
> > I have tcpd set up to allow relaying only from machines inside 1.2.3.0
> >
> > Is there a way to dissable this feature/bug.
> >
> > If you want to test your system, use the telnet service from here
> > http://maps.vix.com/tsi/ar-test.html
> >
> > I am sure that there are many people with a simalar setup which could
> > pose a large spam risk.
> >
> > I would appreciate a speedy reply.
> >
> > John.
> >
> > --
> > Information Technology Innovation Group
> > Swinburne University. Melbourne, Australia
> > http://uranus.it.swin.edu.au/~jn
--
Information Technology Innovation Group
Swinburne University. Melbourne, Australia
http://uranus.it.swin.edu.au/~jn
