MAPS (Mail Abuse Prevention System)
MAPS is a not-for-profit California organization whose mission is to defend the Internet's e-mail system from abuse by spammers. Their principal means of accomplishing this mission is by educating and encouraging ISP's to enforce strong terms and conditions prohibiting their customers from engaging in abusive e-mail practices.
"It's really amazing how many formats you recognize.
You asked me what percentage of bounces you were
able to recognize and I would say it is very close