autoresponding to Yahoo DMARC breakage

[johnl at iecc.com (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 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=procmail&l=1

Regards,
John Levine, johnl at iecc.com, Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. http://jl.ly