diff --git a/nixos/modules/misc/ids.nix b/nixos/modules/misc/ids.nix
index e5506bcc6987..fa51f831481a 100644
--- a/nixos/modules/misc/ids.nix
+++ b/nixos/modules/misc/ids.nix
@@ -153,6 +153,7 @@
       yandexdisk = 143;
       collectd = 144;
       consul = 145;
+      mailpile = 146;
 
       # When adding a uid, make sure it doesn't match an existing gid. And don't use uids above 399!
 
@@ -273,6 +274,7 @@
       riemann = 137;
       riemanndash = 138;
       uhub = 142;
+      mailpile = 146;
 
       # When adding a gid, make sure it doesn't match an existing uid. And don't use gids above 399!
 
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index deec9fd1bb77..54b7aa3c55aa 100755
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -232,6 +232,7 @@
   ./services/networking/iodined.nix
   ./services/networking/ircd-hybrid/default.nix
   ./services/networking/kippo.nix
+  ./services/networking/mailpile.nix
   ./services/networking/minidlna.nix
   ./services/networking/murmur.nix
   ./services/networking/nat.nix
diff --git a/nixos/modules/services/networking/mailpile.nix b/nixos/modules/services/networking/mailpile.nix
new file mode 100644
index 000000000000..e164d41483c7
--- /dev/null
+++ b/nixos/modules/services/networking/mailpile.nix
@@ -0,0 +1,76 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.services.mailpile;
+
+  hostname = cfg.hostname;
+  port = cfg.port;
+
+in
+
+{
+
+  ###### interface
+
+  options = {
+
+    services.mailpile = {
+      enable = mkOption {
+        default = false;
+        description = "
+          Whether to enable Mailpile the mail client.
+        ";
+      };
+      hostname = mkOption {
+        default = "localhost";
+        description = "Listen to this hostname or ip.";
+      };
+      port = mkOption {
+        default = "33411";
+        description = "Listen on this port.";
+      };
+    };
+
+  };
+
+
+  ###### implementation
+
+  config = mkIf config.services.mailpile.enable {
+
+    users.extraUsers.mailpile =
+      { uid = config.ids.uids.mailpile;
+        description = "Mailpile user";
+        createHome = true;
+        home = "/var/lib/mailpile";
+      };
+
+    users.extraGroups.mailpile =
+      { gid = config.ids.gids.mailpile;
+      };
+
+    systemd.services.mailpile =
+      {
+        description = "Mailpile server.";
+        after = [ "network.target" ];
+        wantedBy = [ "multi-user.target" ];
+        serviceConfig = {
+          User = "mailpile";
+          ExecStart = "${pkgs.mailpile}/bin/mailpile --www ${hostname}:${port} --wait";
+          # mixed - first send SIGINT to main process,
+          # then after 2min send SIGKILL to whole group if neccessary
+          KillMode = "mixed";
+          KillSignal = "SIGINT";  # like Ctrl+C - safe mailpile shutdown
+          TimeoutSec = 120;  # wait 2min untill SIGKILL
+        };
+        environment.MAILPILE_HOME = "/var/lib/mailpile/.local/share/Mailpile";
+      };
+
+    environment.systemPackages = [ pkgs.mailpile ];
+
+  };
+
+}