RE: How reliable is it to block/reject on SPF fail?

-----Original Message-----
From: Stuart D. Gathman [mailto:stuart <at> bmsi.com] 
Sent: Tuesday, 1 December 2009 6:52 AM
To: spf-discuss <at> v2.listbox.com
Subject: Re: [spf-discuss] How reliable is it to block/reject on SPF
fail?

While this might be ok for a casual user, I don't want my mail
traversing
google or any other provider in plaintext.  I suppose I could use S/MIME
or GPG, but TLS is no effort privacy measure that doesn't involve trying
to
tell non-geek correspondents how to create a key pair.  When a
correspondent has a small office mail server supporting TLS, adequate
privacy
is automatic.  
---------

This is OT, but the REAL solution to THAT problem is Federated Identity
Management. No Passwords, certificates only.