This is so nice!
Buy the same international rules of anti-spam filters, the Norton Support and Norton Community is going to be blocked too.
Another Words "This rule is putting all e-mails to be blocked".
Please see this Prt Scr:

Please take attention to the red icon on right.
The first message is blocked because is from Argentine. (.ar) I do not know why its happen.
See the part of the header:
X-CTCH-Spam: Unknown
Received: from serv01.m643.sgded.com (serv01.m643.sgded.com [173.236.43.218])
Received: from host212.190-3-11.static.telmex.net.ar ([190.3.11.212] helo=BPLSYMT0910Z)
by serv01.m643.sgded.com with esmtpa (Exim 4.69)
(envelope-from <norton e-mail>)
The second message is blocked because has some texts.
See some part of the header:
X-CTCH-Spam: Unknown
X-CTCH-RefID: str=0001.0A020208.4D9CCCF5.022F,ss=1,fgs=0
Received: from smtp.lithium.com (smtp.lithium.com [208.74.204.5])
by mx.cluster002.whservidor.com (Postfix) with ESMTP id 16B6214282E2
for e-mail Wed, 6 Apr 2011 17:28:37 -0300 (BRT)
Received: from app-c3-5.sj.lithium.com (app-c3-5.sj.lithium.com [10.20.110.40])
by smtp.lithium.com (Postfix) with ESMTP id D9312F00EE
Wed, 6 Apr 2011 13:28:32 -0700 (PDT)
X-DomainKeys: Sendmail DomainKeys Filter v1.0.2 smtp.lithium.com D9312F00EE
Another words, this kind of trouble is like no Free to talk or receive messages.
Where is the Freedon!
By Today the Norton Comunity just can send ONE (1) e-mail per day!
And the same restriction is valid to the Norton Support, just one e-mail per day!
This put this blog and the symantec support out of busines.
This rule is not COOL.
I'm live on Brazil, I'm not guilty if all my messages (from/to) pass into Argentine, Uruguay and other countries.
My ISP I think it is in Brazil. Not in other countries.
Paulo.