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Spammers are better at SPF, DKIM, and DMARC than everyone else

(toad.social)
429 points pabs3 | 1 comments | 25 Mar 25 08:14 UTC | HN request time: 1.21s | source
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badmintonbaseba ◴[25 Mar 25 11:21 UTC] No.43469939[source]▶
Naively I thought that one value proposition of SPF, DKIM and DMARC is that reputation shifts from based on IP to be based on domain, once you set these up correctly. So as long as you can maintain a good reputation for your domain and have SPF, DKIM and DMARC correctly set up, then you can host your SMTP server at any IP and your emails will get delivered.

I wonder why it doesn't work this way.

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arccy ◴[25 Mar 25 11:23 UTC] No.43469948[source]▶
domains are cheap and easy to get new ones. IPv4 addresses are limited so you can't burn them as freely.
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1. dolmen ◴[25 Mar 25 14:10 UTC] No.43471569[source]▶
Do you imply that sending e-mail via IPv6 doesn't work?