k8wiz
cert-manager
Medium
Concepts

Which of the following is NOT a valid ACME challenge type?

Select your answer:

Show answer and explanation

Answer: EMAIL-01

Explanation

EMAIL-01 is not a valid ACME challenge type. The valid ACME challenge types supported by cert-manager are HTTP-01 (which uses HTTP endpoints), DNS-01 (which uses DNS records), and TLS-ALPN-01 (which uses TLS Application-Layer Protocol Negotiation).