autoresponding to Yahoo DMARC breakage

Wed Apr 9 22:45:57 UTC 2014

procmail is a rewrite of MMDF mailfilter. badly.

On Thu, Apr 10, 2014 at 8:42 AM, Christopher Morrow <morrowc.lists at gmail.com
> wrote:

> On Wed, Apr 9, 2014 at 6:27 PM, John R. Levine <johnl at iecc.com> wrote:
> >>> The most "sane" out-of-mind response should only be sent *if* the
> >>> out-of-mind person is named explicitly as a recipient in the RFC822
> >>> To: header.  Anything To: somelist at somehost does not qualify :)
> >
> >
> > This highly effective trick was in the procmail example vacation script
> in
> > 1991, and doubtless goes back much farther than that.  It's a little
> > dismaying to hear that there are still people writing autoresponders who
> > don't know about it.
>
> what is procmail?
>
>