> No,  it's  not  completely useless. Even if you can't query 
> _your own_ SPF  record  unless  it's  set to accept wildcard 
> sending IPs--and you can't  use  WHITELIST  AUTH  for  those  
> IPs--you can still publish an internal  DNS zone for your 
> domain that doesn't contain an SPF record, while  publishing 
> a more restrictive policy in your public DNS record.

Ok. Interesting to know.
Why I can't see anything about this on the SPF homepage or anywhere else?

In my opinion this are very important informations for anyone who want's to
set up SPF-Checks and SPF-Records.

So: 
Use SPFFAIL only 
with Imail v8+ and enabled SMTP-AUTH whitelisting
or with whitelisting of internal IP's from whitch your users/customers
connect from.
or set up private SPF-Records visible only for your own MTA.

In additon: 
Don't use SPFPASS because - as usual - Spammers are much faster then most
Mail-Admins.

Correct?


> In  order to deploy SPF, you definitely need to have a 
> consistent idea of  which sessions deserve elevated 
> privileges in theory--and which of those sessions you can 
> detect in practice.

And so anyone should make his own understanding without a discussion on this
list?
Maybe great part of all who are running SPF tests doesn't know about this
special "issues".

Keep in mind that the defensive effect of SPF-Records can only be as good as
the reliability of SPFFAIL on remote MTA's side. Or in other words: My
SPF-Records are pretty useless if other Admins score SPFFAIL very low
because they can see too much wrong results for this test.

Markus




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