CaptainDNS · February 24, 2026Deploy DANE for Exchange Online and Microsoft 365Microsoft 365 has supported inbound DANE since 2024. This guide explains how to enable it, configure DNSSEC on your domain, and verify the deployment.DANETLSADNSSECmicrosoftRead more
CaptainDNS · February 23, 2026DANE/TLSA troubleshooting: diagnose and fix common errorsYour DANE setup broke after a certificate renewal? Learn how to identify and fix the 5 most common DANE/TLSA errors.DANETLSADNSSECSMTPRead more
CaptainDNS · February 22, 2026Set up DANE/TLSA with Postfix, Bind and Let's EncryptStep-by-step tutorial to deploy DANE on a self-hosted mail server with Postfix, Bind9, DNSSEC and Let's Encrypt.DANETLSADNSSECSMTPRead more
CaptainDNS · February 21, 2026DANE/TLSA: the complete guide to authenticating email certificates via DNSDANE (RFC 6698/7672) binds TLS certificates to domain names using DNSSEC-signed TLSA DNS records. Learn how to deploy it to secure SMTP transport.EmailDANETLSADNSSECRead more
