SMTP has had MAIL FROM: <> null reverse paths since 1982. Web developers still spoof envelope senders to match recipient addresses in 2011.

Posted on Twitter over 14 years ago and archived here at /twitter/2011/11/05/tweet-132890726521516032/ in the Twitter collection.
Proximate posts in the Twitter collection
newer Twitter post from November 9, 2011, 134309176796131328 09 November 2011
this post Twitter post from November 5, 2011, 132890726521516032 05 November 2011
older Twitter post from November 5, 2011, 132681360191131648 05 November 2011
Proximate posts in the General collection
newer Solution to your cat peeing problem 07 November 2011
this post Twitter post from November 5, 2011, 132890726521516032 05 November 2011
older Schnitzel spaetzle dunkel kraut mustard veal and as much ot 05 November 2011