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Are there any real-world studies on SPF DKIM and DMARC impact on deliverability?

4 points| RNCTX | 2 years ago

This would seem to be a simple thing to find but all searches turn up are vague blog posts (symptom of general internet decline but... whatev).

Anyone have something with numbers on this topic bookmarked somewhere? Or that they can share from internal studies at larger email providers?

3 comments

mikerg87|2 years ago

No numbers, but anecdotally we turned off DKIM. Telling end users we are rejecting their otherwise email because they don’t have DKIM implemented. SPF and DMARC compliance got better over time but DKIM compliance just never did get better.

RNCTX|2 years ago

Thanks!

I'm coming from the other side of the equation. I work for a (small-ish, niche) CRM company, and have insisted that all new customers be very explicitly told that they have to set up SPF and DKIM properly during their migration/implementation.

It would be nice to have something to send them to point out "here's where X% of your emails will go to spam if you don't do this, plus you're Y% of an annoyance on our mail server's reputation, too" but there's not any hard data to be found.