Blog | Ziyn

2025

How to protect domains that don't send emails

Important DNS records to prevent unauthorized emails originating from your domain.
An overview of DKIM records

A DKIM record is a specially formatted DNS TXT record that stores the public key the receiving mail server will use to verify a message’s signature.
An overview of SPF records

Sender Policy Framework (SPF) lets you publish a DNS record of all the domains or IP addresses you use to send email. Receiving email services check the record and know to treat email from anywhere else as spam.
An overview of DMARC records

What Domain-based Message Authentication, Reporting and Conformance (DMARC) records are and how they work

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