From d6e9b8d66f4f0773337f486dd5c6cd6e135e9036 Mon Sep 17 00:00:00 2001
From: Victor Nawothnig <dminuoso+git@icloud.com>
Date: Sun, 22 Aug 2021 03:05:43 +0200
Subject: [PATCH] nixos/rspamd: Avoid empty postfix service

(cherry picked from commit 942d78d9cdac3826059cbf351932cd5bcf1c315f)
---
 nixos/modules/services/mail/rspamd.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/nixos/modules/services/mail/rspamd.nix b/nixos/modules/services/mail/rspamd.nix
index 473ddd52357..c78f464235a 100644
--- a/nixos/modules/services/mail/rspamd.nix
+++ b/nixos/modules/services/mail/rspamd.nix
@@ -371,8 +371,9 @@ in
     };
     services.postfix.config = mkIf cfg.postfix.enable cfg.postfix.config;
 
-    systemd.services.postfix.serviceConfig.SupplementaryGroups =
-      mkIf cfg.postfix.enable [ postfixCfg.group ];
+    systemd.services.postfix = mkIf cfg.postfix.enable {
+      serviceConfig.SupplementaryGroups = [ postfixCfg.group ];
+    };
 
     # Allow users to run 'rspamc' and 'rspamadm'.
     environment.systemPackages = [ pkgs.rspamd ];