services.postfix.headerChecks.*.pattern
NixOS option
A regexp pattern matching the header
type: stringDefault
"/^.*/"
Example
declared in: nixos/modules/services/mail/postfix.nixView source on NixOS/nixpkgs →"/^X-Mailer:/"
NixOS option
A regexp pattern matching the header
type: string"/^.*/"
"/^X-Mailer:/"