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SPF records: not really all that important

I’ve been working through some Hotmail issues with a client over the last few months. One of the things that has become clear to me is how little Hotmail actually does with SPF records. In fact, Hotmail completely ignored my client’s SPF record and continued to deliver email into the inbox.
This isn’t just a sender that had a “well, we think most of our email will come from these IPs but aren’t telling you to throw away email that doesn’t” record. In fact, this client specifically said “if email doesn’t come from this /28 range of email addresses, then it is unauthorized and should be thrown away.” The email was being sent from an IP outside of the range listed in the SPF record.
As part of the process involved in fixing the delivery problems, I had the client update their SPF record and then I enrolled their domain in the SenderID program at Hotmail. This didn’t have any effect, though. Hotmail is still not checking SPF for this client. When I asked Hotmail what was going on they said, “We do not do lookups on every sender’s mail.”
So, there you have it folks. The last bastion of SPF/SenderID has abandoned the technology. Even a totally invalid SPF record doesn’t matter, mail can still reach the inbox at Hotmail.

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Holomaxx doubles down

Holomaxx has, as expected, filed a motion in opposition to the motion to dismiss filed by both Yahoo (opposition to Yahoo motion and Hotmail (opposition to Microsoft motion). To my mind they still don’t have much of an argument, but seem to believe that they can continue with this.
They are continuing to claim that Microsoft is scanning email before the email gets to Microsoft (or Yahoo) owned hardware.

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Holomaxx status

Just for completeness sake, Holomaxx did also file an  amended complaint against Microsoft. Same sloppy legal work, they left in all the stuff about Return Path even though Return Path has been dropped from the suit. They point to a MAAWG document as a objective industry standard when the MAAWG document was merely a record of a round table discussion, not actually a standards document. I didn’t read it as closely as I did the Yahoo complaint, as it’s just cut and paste with some (badly done) word replacement.
So what’s the status of both cases?
The Yahoo case is going to arbitration sometime in July. Yahoo also has until May 20 to respond to the 1st amended complaint.
The Microsoft case is not going to arbitration, but they also have a response deadline of May 20.
I’m not a legal expert, but I don’t think that what Holomaxx has written fixes the deficits that the judge pointed out in his dismissal. We’ll see what the Y! and MSFT responses say a month from today.

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