Apple mail tls 1.2

A very specific and technical question!

Apple Mail uses TLS (Transport Layer Security) to encrypt email communications. As of macOS High Sierra (10.13) and later, Apple Mail uses TLS 1.2 as the default encryption protocol for sending and receiving emails.

Here are some details about Apple Mail's TLS 1.2 implementation:

  1. TLS 1.2 version: Apple Mail uses TLS 1.2, which is a widely adopted and secure version of the TLS protocol.
  2. Cipher suites: Apple Mail supports a range of cipher suites, including AES-128-GCM-SHA256, AES-256-GCM-SHA384, and ChaCha20-Poly1305-SHA256, among others.
  3. Certificate validation: Apple Mail performs certificate validation to ensure that the email server's certificate is valid and trusted.
  4. TLS 1.2 fallback: If a server only supports TLS 1.0 or earlier, Apple Mail will attempt to fall back to TLS 1.0 or earlier, but this is not recommended as it reduces the security of the connection.

It's worth noting that Apple Mail also supports other encryption protocols, such as STARTTLS and SSL/TLS, but TLS 1.2 is the default and recommended protocol.

If you're concerned about the security of your email communications, you can check your email provider's settings to ensure that they support TLS 1.2 and are using a secure cipher suite. Additionally, you can use a third-party email client or service that supports more advanced encryption protocols, such as PGP or S/MIME.