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[spf-discuss] Re: PermError: Too many DNS lookups at Microsoft.com

2006-05-07 09:03:53
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Hector Santos wrote:
Scott Kitterman wrote:
I think you are still using the old (pre-MARID/2004) recursion
limits.  The current approach is a little different:

I see.  But this is one of those things that was changed without much
insight to the repercussions. :-)

You see it as PERMERROR.  Classic SPF implementations sees it as a
SOFTFAIL.

I checked the various drafts for what they had to say about processing 
limits:

draft-mengwong-spf.02.9.4:          "unknown" (AKA "PermError")
draft-mengwong-spf-{00,01}:         "unknown" (AKA "PermError")
spf-draft-200406:                   "unknown" (AKA "PermError")
draft-lentczner-spf-00:             "PermError" ("TempError" for timeouts)
draft-schlitt-spf-classic-{00-02}:  "PermError" ("TempError" for timeouts)
rfc4408:                            "PermError" ("TempError" for timeouts)

I know of no draft that declares a violation of the processing limits a
"SoftFail".  I know of no implementation (possibly besides yours), either, 
that generates a "SoftFail" in this situation.

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