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List of email providers that support spf6/18/2023 An SPF record is plain text and can be as simple as listing IP addresses that are allowed to send email on the domain’s behalf. Domain owners publish SPF records to the Domain Name System (DNS) that spell out rule sets for their domains.If the IP address of a mail server is not on the list, mail sent trying to use that domain won’t pass SPF authentication. SPF prevents spoofing by enabling domain owners to whitelist IP addresses of servers that are authorized to send email on the domain’s behalf. ![]() It is an underpinning of DMARC, and works hand in hand with DKIM to prevent s pammers from sending messages as you in an exact-domain impersonation. ![]() S ender Policy Framework is an email authentication standard (along with DKIM) that uses whitelisted IP addresses to be the only ones authorized to send emails.
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