This memo describes a downgrade-resistant protocol for SMTP transport security between Message Transfer Agents (MTAs), based on the DNS-Based Authentication of Named Entities (DANE) TLSA DNS record. Adoption of this protocol enables an incremental transition of the Internet email backbone to one using encrypted and authenticated Transport Layer Security (TLS).| IETF Datatracker
Configure an external DNS provider to point your domain to our platform. You can use external DNS for a subdomain or apex domain you registered externally.| docs.netlify.com
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