📄️ Overview
Transport Layer Security (TLS) is a widely adopted protocol designed to facilitate secure communications over a computer network. It provides encryption for data in transit, ensuring that any information transmitted between a mail server and its clients remains confidential and tamper-proof. TLS is fundamental to securing email transmissions, protecting against eavesdropping and man-in-the-middle attacks.
📄️ Certificates
When deploying TLS encryption with manually provided certificates, Stalwart Mail Server automatically parses each certificate to extract all available subject names embedded within the certificate. These subject names indicate the domains and subdomains for which the certificate is valid, essentially determining the scope of its applicability for securing connections.
🗃️ ACME
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