From 8fad959b15cba08a11a1f95b2f8fec6f977b06d1 Mon Sep 17 00:00:00 2001
From: Viktor Kleen <viktor@kleen.org>
Date: Tue, 5 Jan 2016 02:57:52 -0800
Subject: [PATCH] postfix service: make SMTP services optional using enableSmtp
 option

---
 nixos/modules/services/mail/postfix.nix | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/nixos/modules/services/mail/postfix.nix b/nixos/modules/services/mail/postfix.nix
index 3a9e62a0205..c18ed599868 100644
--- a/nixos/modules/services/mail/postfix.nix
+++ b/nixos/modules/services/mail/postfix.nix
@@ -108,10 +108,14 @@ let
     flush     unix  n       -       n       1000?   0       flush
     proxymap  unix  -       -       n       -       -       proxymap
     proxywrite unix -       -       n       -       1       proxymap
+  ''
+  + optionalString cfg.enableSmtp ''
     smtp      unix  -       -       n       -       -       smtp
     relay     unix  -       -       n       -       -       smtp
     	      -o smtp_fallback_relay=
     #       -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
+  ''
+  + ''
     showq     unix  n       -       n       -       -       showq
     error     unix  -       -       n       -       -       error
     retry     unix  -       -       n       -       -       error
@@ -154,6 +158,11 @@ in
         description = "Whether to run the Postfix mail server.";
       };
 
+      enableSmtp = mkOption {
+        default = true;
+        description = "Whether to enable smtp in master.cf.";
+      };
+
       setSendmail = mkOption {
         default = true;
         description = "Whether to set the system sendmail to postfix's.";