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What is up with hotmail and SPF ?

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Lee View Drop Down
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    Posted: 28 December 2004 at 8:54pm

Can anyone explain what is going on with Hotmail and their SPF records ?

I always get Soft failures from them.

found SPF record: v=spf1 include:spf-a.hotmail.com include:spf-b.hotmail.com include:spf-c.hotmail.com include:spf-d.hotmail.com ~all
12/28/04 20:09:34:143 -- (273) found SPF record: v=spf1 ip4:209.240.192.0/19 ip4:65.52.0.0/14 ip4:131.107.0.0/16 ip4:157.54.0.0/15 ip4:157.56.0.0/14 ip4:157.60.0.0/16 ip4:167.220.0.0/16 ip4:204.79.135.0/24 ip4:204.79.188.0/24 ip4:204.79.252.0/24 ip4:207.46.0.0/16 ip4:199.2.137.0/24 ~all
12/28/04 20:09:34:143 -- (273) SPF query result:
12/28/04 20:09:34:143 -- (273) - SPF analysis for spf-a.hotmail.com done: - softfail

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Post Options Post Options   Thanks (0) Thanks(0)   Quote LogSat Quote  Post ReplyReply Direct Link To This Post Posted: 28 December 2004 at 11:06pm
Lee,

I recommend going to the SPF website at http://spf.pobox.com for more accurate info. That said, the "softfail" is a switch (the ~ in front of the last ~all) that tells anti-spam software how the host (hotmail) would like emails that fail the filter to be handled. Softfail means that hotmail would like such emails to be "flagged" as spam, but would prefer to have them delivered. This is supposed to be used during a rollout phase of SPF.

Roberto F. LogSat Software
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