services.postfix.settings.main.smtpd_tls_security_level

The server TLS security level. Enable TLS by configuring at least may.

https://www.postfix.org/postconf.5.html#smtpd_tls_security_level

Type

one of "none", "may", "encrypt"

Default

if config.services.postfix.settings.main.smtpd_tls_chain_files != [ ] then "may" else "none"

Example

"may"

Declared

<nixpkgs/nixos/modules/services/mail/postfix.nix>