Email Authentication

Email authentication addresses a significant flaw in digital communications: the inability for an email recipient to verify a sender’s identity.

Email authentication allows email receivers/MTAs to verify a sender’s identity. It’s based on the application of several globally accepted open standards, including SPF, DKIM, and DMARC.

Using email authentication, a company can enable only those senders that it explicitly authorizes, and block everyone else who attempts to send email on its domain name: malicious actors as well as legitimate (but not yet authorized) cloud service providers.

By successfully implementing email authentication, a company can ensure that anyone who receives an email from their domain name can trust that it really comes from that company.

Furthermore, email authentication tells receiving servers what to do with non-authenticating messages: discard them, move them to spam, or deliver them normally.

Email Authentication Has Wide Support

Virtually every major email service provider has implemented email authentication. That includes 100 percent of major providers such as Gmail, Microsoft, and Yahoo!/AOL/Oath, as well as a large and growing majority of email providers and ISPs across the globe. In all, 76 percent of mailboxes worldwide, or 4.6 billion mailboxes, are protected by email authentication and will enforce domain owners' DMARC policies.

Email Authentication Implementation Challenges

When implemented properly, email authentication provides global visibility into your email ecosystem. But it requires careful understanding of SPF, DKIM, and DMARC standards, constant monitoring of DMARC reports, and frequent updates in response to changes in your array of cloud service providers.

Of the companies that attempt to get email authentication to an enforcement policy on their own, 70 to 80 percent fail to do so within 9 months. Maintaining enforcement is an ongoing challenge for these companies.

Successfully implementing and maintaining email authentication requires a fully automated approach that eliminates the need for specialized in-house expertise, interpretation of complicated DMARC reports, and frequent manual updates to DNS records.

Find out more about how Valimail Enforce™ can help automate email authentication for your company and reduce your team’s manual efforts.