Re: autoresponding to Yahoo DMARC breakage

2014-04-09 Thread John R. Levine
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@somehost does not qualify :) This highly effective trick was in the procmail example vacation script in 1991, and doubtless

Re: autoresponding to Yahoo DMARC breakage

2014-04-09 Thread Christopher Morrow
On Wed, Apr 9, 2014 at 6:27 PM, John R. Levine jo...@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@somehost does not qualify :) This highly effective trick

Re: autoresponding to Yahoo DMARC breakage

2014-04-09 Thread George Michaelson
procmail is a rewrite of MMDF mailfilter. badly. On Thu, Apr 10, 2014 at 8:42 AM, Christopher Morrow morrowc.li...@gmail.com wrote: On Wed, Apr 9, 2014 at 6:27 PM, John R. Levine jo...@iecc.com wrote: The most sane out-of-mind response should only be sent *if* the out-of-mind person is

Re: autoresponding to Yahoo DMARC breakage

2014-04-09 Thread John R. Levine
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? The scriptable mail delivery agent

Re: autoresponding to Yahoo DMARC breakage

2014-04-09 Thread Dave Crocker
On 4/9/2014 5:45 PM, George Michaelson wrote: procmail is a rewrite of MMDF mailfilter. badly. Thanks, but I believe it slightly preceded MMDF's equivalent facility. On the average, Allman put comparable features into sendmail sooner than I did. Of course, my design's were sooo much

Re: autoresponding to Yahoo DMARC breakage

2014-04-09 Thread John R. Levine
On Wed, Apr 9, 2014 at 6:11 PM, bmann...@vacation.karoshi.com wrote: and just how is an algorithm supposed to detect that jeff-k...@utc.edu is a single human and not a list? If the autoresponder is sane, it looks for: List-Id: North American Network Operators Group