modules/private/mail/default.nix

   1 { lib, pkgs, config, ... }:
   2 {
   3   imports = [
   4     ./milters.nix
   5     ./postfix.nix
   6     ./dovecot.nix
   7     ./relay.nix
   8     ./rspamd.nix
   9     ./opensmtpd.nix
  10     ./sympa.nix
  11   ];
  12   options.myServices.mail.enable = lib.mkEnableOption "enable Mail services";
  13   options.myServices.mailRelay.enable = lib.mkEnableOption "enable Mail relay services";
  14   options.myServices.mailBackup.enable = lib.mkEnableOption "enable MX backup services";
  15
  16   config = lib.mkIf config.myServices.mail.enable {
  17     security.acme.certs."mail" = config.myServices.certificates.certConfig // {
  18       domain = config.hostEnv.fqdn;
  19       extraDomains = let
  20         zonesWithMx = builtins.filter (zone:
  21           lib.attrsets.hasAttr "withEmail" zone && lib.lists.length zone.withEmail > 0
  22         ) config.myEnv.dns.masterZones;
  23         mxs = map (zone: "${config.hostEnv.mx.subdomain}.${zone.name}") zonesWithMx;
  24       in builtins.listToAttrs (map (mx: lib.attrsets.nameValuePair mx null) mxs);
  25     };
  26     # This is for clients that don’t support elliptic curves (e.g.
  27     # printer)
  28     security.acme.certs."mail-rsa" = config.myServices.certificates.certConfig // {
  29       domain = config.hostEnv.fqdn;
  30       keyType = "rsa4096";
  31       extraDomains = let
  32         zonesWithMx = builtins.filter (zone:
  33           lib.attrsets.hasAttr "withEmail" zone && lib.lists.length zone.withEmail > 0
  34         ) config.myEnv.dns.masterZones;
  35         mxs = map (zone: "${config.hostEnv.mx.subdomain}.${zone.name}") zonesWithMx;
  36       in builtins.listToAttrs (map (mx: lib.attrsets.nameValuePair mx null) mxs);
  37     };
  38     systemd.slices.mail = {
  39       description = "Mail slice";
  40     };
  41   };
  42 }