📄️ Overview
The Automatic Certificate Management Environment (ACME) protocol has revolutionized the way Transport Layer Security (TLS) certificates are issued and managed. This protocol automates the process of obtaining, installing, and renewing TLS/SSL certificates, which are crucial for securing network communications. TLS certificates provide authentication and encryption, ensuring that data transferred between users and servers remains private and secure.
📄️ Challenge Types
The ACME protocol supports several types of challenges to prove control over a domain name. Each challenge type verifies that the ACME client (in this case, Stalwart Mail Server) controls the domain it claims to represent. The choice of challenge depends on the user’s environment and the specific security requirements:
📄️ Configuration
Stalwart Mail Server supports automatic TLS deployment and renewals using the ACME protocol, enhancing security and ease of management for mail server administrators. ACME in configured in the acme. section of the configuration file. The following attributes are available: