AI Overview
SPF, DKIM, and DMARC are DNS records that verify the
identity of an email sender. They are used to prevent email spoofing and
phishing.
How they work
SPF: Lists IP addresses that are authorized to send
email on behalf of a domain
DKIM: Uses an encrypted key pair to add a digital
signature to each email
DMARC: Specifies policies to apply to emails that fail
to authenticate with SPF or DKIM
Where they are stored
All three records are stored in the Domain Name System (DNS)
as DNS TXT records
The DNS is publicly available and matches web addresses to
IP addresses
Benefits Improve open rates and engagement with
readers, Improve sender reputation, Prevent emails from being marked as spam,
Increase email deliverability, and Protect your brand and customers from
malicious actors.
How to check
Most email clients have an option to display the full
version of an email, including its header
The header is where mail servers append the results of SPF,
DKIM, and DMARC
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