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Hi! |
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|
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On Wed, 08 Nov 2006, Alin Nastac wrote: |
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|
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> Diego 'Flameeyes' Pettenò wrote: |
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> > On Wednesday 08 November 2006 21:01, Kurt Lieber wrote: |
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> > |
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> >> So, in other words, spammers aren't abusing anything related to SPF. |
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> >> They're sending mail using forged return-paths and SPF is highlighting |
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> >> that. Which is exactly what SPF is designed to do. |
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> >> |
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> > If I were to send my gentoo mail through a mail.flameeyes.is-a-geek.org, with |
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> > its own SPF record, (I'm not as this is not a "real" domain I have access to, |
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> > nor a mailserver for what it's worth), with a From: flameeyes@g.o and |
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> > a Sender: flameeyes@×××××××××××××××××××.org, would it be a PASS or a FAIL in |
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> > SPF? |
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> > |
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> > |
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> It doesn't matter what From, Sender or whatever else in the message header. |
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> The part that counts is the Return-Path (the "mail from:" part of the |
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> SMTP protocol). |
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|
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Or so it should be. As I've written earlier, some very misguided |
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people not only judge the Envelope-From (i.e. "MAIL FROM" in |
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SMTP-Speak, which usually is identical to the header |
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"Return-Path") against SPF, but also the in-mail header From:. |
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|
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Yes, it's downright stupid because it breaks just about nay |
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mailing software I know. Yes, it's used by at least two larger |
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providers in Europe. No, tech support there soesn't think it's a |
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bad idea after I explained it in easy, friendly words. |
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|
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Idiots. |
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|
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Still: there are two things to keep in mind: |
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|
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1) Do you "just don't care" about the users of those ISPs. |
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2) Does Gentoo as a distro want to "advocate" for the usage of |
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SPF (ever so slightly) with the knowledge that it breaks |
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several things? |
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|
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Regards, |
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Tobias |
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|
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PS: Even without those idiots, SPF breaks pre-delivery forwards. |
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But also said that already and it was illustrated why that |
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happens on the "why SPF isn't quite ideal" page someone mentioned |
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earlier in the thread. |
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|
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PPS: Windmills, anyone? |
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-- |
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Never touch a burning system. |
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|
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-- |
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gentoo-dev@g.o mailing list |