I would like to Symantec think about this. (for NIS or 360)
I and a lot of people receive a lot of e-mail (Spam, Junk) that pass over all actual rules.
These e-mails are using regular addresses from known people, like your e-mail or friends e-mails, but this e-mails are not from their.
They use this feature, only see on the header:
Return-Path: <email1(at)email1(dot)com>
...
From: "Friend known name" <fake(at)email(dot)com> *****here is where all e-mail rules works
...
Reply-To: email2(at)email2(dot)com
....
Subject: some text *****here some e-mail filters works
My suggestion is:
Some kind of filter that I can set, to all header scam, looking for this fields, blocking some addresses.
I use a lot the blocked list and configure a lot of e-mails rules on Windows Live Email, but no one are blocking this situation.
Thank you.
(sorry about my English)