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Is the impact of DKIM and SPF on email delivery measurable? Have any studies on this subject been published? Such an important part of our lives should be bette
by orangepurple 5y ago
Is the impact of DKIM and SPF on email delivery measurable? Have any studies on this subject been published? Such an important part of our lives should be better understood. Reading this thread feels like witnessing clergy swinging thuribles towards the congregation while mumbling the gospel to build a connection with God.
- zrail 5y agoDKIM and SFP by themselves haven't done a ton, but they both feed into DMARC which absolutely has had an effect. It's probably just not what you think. The point of DMARC is to protect senders from spoofing. I.e. if I'm PayPal I don't want anyone to be able to spoof email from my domain, so I set a DMARC policy to reject if SFP and DKIM both fail. If I own a domain that I never want to be used for email I can set that same DMARC policy and just neglect to set up SFP and DKIM, therefore ensuring they fail.