thomas schorpp wrote:
- esmpts, asmptps...? "x" is a general placeholder/variable
(basic math, 5th grade) ;)
The "official" abbreviations are not very popular, see also
What you really want most probably isn't ESMPTPS - unknown
stranger sends mail, adding encryption won't help you. You
want "reputation", something telling you that the unknown
stranger is a good guy / new kid / known troublemaker.
For better ideas in this direction see MTAMARK, CSV, and the
HELO part of SPF. For products in this direction check out
senderbase / ironport / spamcop.