On Thu, 2009-07-09 at 10:05 +0100, Jethro R Binks wrote:
> On Thu, 9 Jul 2009, John Horne wrote:
>
> > On Wed, 2009-07-08 at 16:57 -0700, Jeroen van Aart wrote:
> > > John Horne wrote:
> > > > I noticed a frozen bounce in our mail queue for a message which seems to
> > > > have come from (envelope sender)
> > > > '4526433.tHjd3LnMP.@pcrm.unikorea.go.kr'.
> > > >
> > > > As far as I can tell, the '.@' part of the address is invalid according
> > > > to RFC2822. So why did exim accept it if it is syntactically invalid?
> > >
> > > You can find out in the manual, http://www.exim.org/index.html, how to tell exim to
> > > refuse non existing addresses and/or syntactically incorrect addresses.
> > >
> > Yes, I realise that but my question is why accept an invalid address in
> > the first place? If I send a message with the address
> > 'fred@@example.com' exim rejects it with a 'domain missing or malformed'
> > error. That isn't something I have configured, it is exim recognising an
> > invalid address. So why not do the same with '.@'?
>
> I do not know the answer to this, however it was discussed a while back on
> the list, and someone produced a set of ACL checks that did further
> analysis than exim's default check.
>
Okay, thanks for this. I'll check the archives, and since you seem to
have quoted the original poster it should be easy enough to locate the
thread.
John.
--
---------------------------------------------------------------
John Horne, University of Plymouth, UK Tel: +44 (0)1752 587287
E-mail: John.Horne@??? Fax: +44 (0)1752 587001
