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Google Says 91.4pct of Authenticated Non-Spam Emails Via Gmail Use DKIM or SPF Standards
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msg:4628610
 12:56 pm on Dec 7, 2013 (gmt 0)

More specifically, the 91.4% of the authenticated non-spam emails sent to Gmail users come from senders that have adopted one or more of the following email authentication standards: DKIM (DomainKey Identified Email) or SPF (Sender Policy Framework).Google Says 91.4pct of Authenticated Non-Spam Emails Via Gmail Use DKIM or SPF Standards [googleonlinesecurity.blogspot.com]
Here are some statistics that illustrate the scale of what we’re seeing:

76.9% of the emails we received are signed according to the (DKIM) standard. Over half a million domains (weekly active) have adopted this standard.
89.1% of incoming email we receive comes from SMTP servers that are authenticated using the SPF standard. Over 3.5 million domains (weekly active) have adopted the SPF standard.
74.7% of incoming email we receive is protected by both the DKIM and SPF standards.
Over 80,000 domains have deployed domain-wide policies that allow us to reject hundreds of millions of unauthenticated emails every week via the DMARC standard.

 

bill




msg:4628891
 4:16 am on Dec 9, 2013 (gmt 0)

DKIM is very tough to implement compared to SPF. That huge 74% portion of the pie where both SPF and DKIM are implemented I'm going to assume is primarily people using Gmail/Hotmail/Yahoo mail and the like.

DMARC is something I use on my domains, but I only set it to report, not reject mails. I'm a bit surprised there are 80K domains using DMARC that way.

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