On Tue, Nov 04, 2003 at 09:29:29AM -0800, spf(_at_)jdl(_dot_)com wrote:
|
| So, I think I want to add this:
|
| TXT "v=spf1 mx default=deny"
| or maybe this:
| TXT "v=spf1 mx ptr default=deny"
For you the best record would be TXT "v=spf1 a default=deny"
because there's only the one box.
|
| At the risk of sounding dumb, can someone clarify the "deny"
| vs "softdeny" for me. In particular, _when_ does this come
| into play? I am willing to just state from the onset that I
| am the only publisher of mail from the "jdl.com" domain and
| all others are forged. Anyone else who actually tries to use
| the domain is forging it. So I should use "deny" directly, right?
You should use softdeny until April 12th 2004 because:
you send mail to somebody(_at_)pobox(_dot_)com
somebody(_at_)pobox(_dot_)com forwards to realperson(_at_)example(_dot_)com
example.com does the SPF check. if it's deny, there's a reject.
softdeny means it's still accepted.
April 12th 2004 is when all forwarding providers should have upgraded to
some kind of sender rewriting scheme so this is no longer a problem.
By April 12th, pobox.com will be SRS-rewriting all SPF-conformant sender
addresses, and other email forwarding providers should too.
-------
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