services.postfix.settings.main.smtp_tls_security_level
NixOS option
The client TLS security level. Use dane with a local DNSSEC validating DNS resolver enabled. https://www.postfix.org/postconf.5.html#smtp_tls_security_level
type: one of "none", "may", "encrypt", "dane", "dane-only", "fingerprint", "verify", "secure"Default
declared in: nixos/modules/services/mail/postfix.nixView source on NixOS/nixpkgs →"may"