Re: autoresponding to Yahoo DMARC breakage
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 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. Regards, John Levine, jo...@iecc.com, Primary Perpetrator of The Internet for Dummies, Please consider the environment before reading this e-mail. http://jl.ly smime.p7s Description: S/MIME Cryptographic Signature
Re: autoresponding to Yahoo DMARC breakage
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 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?
Re: autoresponding to Yahoo DMARC breakage
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 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 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?
Re: autoresponding to Yahoo DMARC breakage
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 that most Unix-ish systems use to sort mail at delivery time. It's a marvel of robust programming, no updates since 2001 but still works great. http://lmgtfy.com/?q=procmaill=1 Regards, John Levine, jo...@iecc.com, Primary Perpetrator of The Internet for Dummies, Please consider the environment before reading this e-mail. http://jl.ly
Re: autoresponding to Yahoo DMARC breakage
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 better than his, but that seems to have hurt it's adoption... d/ -- Dave Crocker Brandenburg InternetWorking bbiw.net
Re: autoresponding to Yahoo DMARC breakage
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 nanog.nanog.org Yes, there are a lot of headers that give you a hint that a message is from a list. But the heuristic to look for the recipient's address on the To: line works so well, along with a little rate limiting, that you don't really need anything else. Regards, John Levine, jo...@iecc.com, Primary Perpetrator of The Internet for Dummies, Please consider the environment before reading this e-mail. http://jl.ly smime.p7s Description: S/MIME Cryptographic Signature
