On Thu, Sep 11, 2008 at 02:52:11PM -0500, Noel Jones wrote:
> Robert Schetterer wrote:
> >>Eh?? Mail _from_ a large multinational company arrives via a dyn ip?
> >
> >no the orginal mail is comming from there ( bigcompany) and wishes a
> >notify being delivered after recieve,
>
> the bigcompany IP address is the one you put in the
> smtpd_discard_ehlo_keyword_address_maps table.
>
> But as Ralf suggested, maybe it's a header triggering the DSN.
The correct terminology is likely "MDN" not "DSN". DSN requests are
processed by MTAs and use the ESMTP "DSN" feature. "MDN" requests
are processed by mail user agents when messages are read, and are
triggered by headers such as "Disposition-Notification-To:".
One can usually configure MUAs to ignore "MDN" requests.
--
Viktor.
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