[CS-FSLUG] NI: Microsoft pushes spam-filtering technology

[Frank Bax]

At 08:52 AM 6/24/05, Fred A. Miller wrote:

>http://news.zdnet.com/2100-1009_22-5758365.html?tag=nl.e539


A) Sender ID ... requires ... publish so-called SPF (Sender Policy 
Framework) records

B) about 30 percent of e-mail today carries Sender ID information


These statements are confusing to me.  Statement (B) implies that the 
content of mail messages is changed with SenderID, but a receiving system 
can validate ip address of machine making incoming connection against SPF 
records without modification to message headers.