On 30/01/2008, Ian Eiloart <iane@???> wrote: >
>
> --On 29 January 2008 14:57:38 +0000 Peter Bowyer <peter@???> wrote:
>
> > Anyone here know anything about uk2.net and their sender verfy
> > implementation? It's clearly Exim...
>
> Well, when I telnet to one of the MX servers for uk2.net, and start an SMTP
> session, I don't see any callouts coming back to my MX servers. Is it the
> uk2.net domain that your associate is sending mail to?
Me neither - hence my puzzlement. The answer, though is, as usual,
more c*ck-up than conspiracy....
uk2.net used to host the domain that my colleague was using in MAIL
FROM - several registrar / hosting company moves ago. Recently, he
logged in to his control panel at uk2.net, and did a tidy-up -
including removing all the email aliases belonging to the
long-ago-transferred-elsewhere domain.
It seems that uk2's MXs are in a habit of doing sender verification
for domains they think they own - perhaps not such a bad thing - and
the removal of the aliases caused this verification to fail. A
temporary solution was to put the aliases back... a more permanent one
will hopefully follow from a support ticket we've raised with them -
they will forget that they used to host the domain.