Re: [exim] Mail servers blocking DSN's

Αρχική Σελίδα
Delete this message
Reply to this message
Συντάκτης: Peter Bowyer
Ημερομηνία:  
Προς: Exim, Users
Αντικείμενο: Re: [exim] Mail servers blocking DSN's
On 17/10/06, Renaud Allard <renaud@???> wrote:
> Hi,
>
> Stuart Gall wrote:


<snip>

> >
> > Now obviously if they do not accept DSN's undeliverable messages will
> > be frozen on our server and so this should be rejected. Personally I
> > would be quite happy to leave it at that. However one of my clients
> > wants to be able to receive mail from two such domains.
> >
> > So I was wondering if anyone else has came across this strange tactic. ?
> > If it becomes more widespread then perhaps we need an option to
> > specify the from address in sender callouts.
>
> I did come into such a problem. The resolution is quite simple, just
> contact the owner of these domains (IE: cc the postmaster of these
> domain when you send the evidence of their non compliance to
> rfc-ignorant.org) and ask them to correct their mail servers.
> For an example of a warning mail, you can look at
> http://www.rfc-ignorant.org/tools/detail.php?domain=asicorp.com&submitted=1161039519&table=dsn
> (yes, I do submit them automatically and there are many per day)


A side benefit of dsn.rfc-ignorant.org is that you can use that DNSBL
as a 'whitelist' to skip around your callouts, since you won't get any
useful information from calling out to domains that are listed there.

Peter
--
Peter Bowyer
Email: peter@???