Will DANE for SMTP solve all of your GDPR problems?

The short answer: probably not. The long answer: keep reading.

What is DANE?

According to Wikipedia:

"DNS-based Authentication of Named Entities (DANE) is a protocol to allow X.509 certificates, commonly used for Transport Layer Security (TLS), to be bound to DNS names using Domain Name System Security Extensions (DNSSEC)"

In less technical terms, DANE is a protocol which allows you to securely associate a domain name with an X.509 certificate.