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Re: [spf-discuss] Re: Ramble about scopes

2006-01-12 08:26:59
On Thu, Jan 12, 2006 at 12:30:35PM +0100, Frank Ellermann wrote:
<snip> 
If there's a route where SPF results in PASS, but PRA results in less than
PASS, what is he actually doing with this route ?

Actually PRA can easily cause this when someone puts in a record thinking
that it will not be evaluated in RFC822 scope:

marketing.example.com.          TXT "v=spf1 -all" ; don't use in RFC821
bounce.marketing.example.com.   TXT "v=spf1 a:outbound.example.com -all"

SenderID says v=spf1 can be used as spf2.0/pra,mfrom. So when someone
checks a message

coming from outbound.example.com
RFC821From as bounce.marketing.example.com
RFC822From as marketing.example.com

SPF passes, SenderID PRA fails (no sender or other PRA headers present)

-- 
:: Jeff Macdonald | Principal Engineer, Messaging Technologies
:: e-Dialog | jmacdonald(_at_)e-dialog(_dot_)com
:: 131 Hartwell Ave. | Lexington, MA 02421 
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