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A comment on IPv4 pricing. Parent comment

Re:IPv4 pricing by 55555 on Wednesday July 28, 2021 @10:02AM (#27983842)
IPv6s are too cheap for most mailbox providers to take seriously. If someone sends spam, you need to block their IP, but they also need to lose money. Spammers don't care if they lose an IPv6. They'll just send spam from another.

(I don't really know what I'm talking about.)

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Re:IPv4 pricing by thayne on Wednesday July 28, 2021 @11:32AM (#27985002)
That's where DKIM and SPF come in.
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Re:IPv4 pricing by ikiris on Wednesday July 28, 2021 @11:42AM (#27985133)
Not really. If you look at the numbers, spam almost always has these.
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Re:IPv4 pricing by corty on Wednesday July 28, 2021 @12:06PM (#27985439)
Yes really. With DKIM, you blacklist domains, not IPs. Of course, only if you do it properly. Hotmail doesn't...
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Re:IPv4 pricing by Avamander on Friday July 30, 2021 @06:54AM (#28006625)
You're pretending that domains aren't a cheap disposable commodity, they are.
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Re:IPv4 pricing by ATsch on Wednesday July 28, 2021 @12:10PM (#27985494)
That's to be expected. All it does is ensure the accuracy of the email sender. Which finally lets you attach reputation to domains instead of addresses.
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Re:IPv4 pricing by ikiris on Wednesday July 28, 2021 @04:39PM (#27989406)
No, I mean its to the point that mail with this signature is almost always (multiple 9s) spam.
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Re:IPv4 pricing by thayne on Wednesday July 28, 2021 @01:28PM (#27986470)
Because most email providers will block you if yo don't have them now. And because of that, if you get blacklisted you need to buy a new domain, not just a new ip address.
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