diff --git a/postfix.changes b/postfix.changes
index e004280..02319c0 100644
--- a/postfix.changes
+++ b/postfix.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Wed Nov  8 13:32:28 CET 2017 - kukuk@suse.de
+
+- Don't mark postfix.service as config file, this is no config
+  file.
+- Some of the Requires(pre) are needed for post-install and at
+  runtime, fix the requires.
+
 -------------------------------------------------------------------
 Mon Oct 30 12:12:08 UTC 2017 - michael@stroeder.com
 
diff --git a/postfix.spec b/postfix.spec
index 3e3a6f6..742ccd2 100644
--- a/postfix.spec
+++ b/postfix.spec
@@ -104,6 +104,7 @@ BuildRequires:  postgresql-devel
 BuildRequires:  shadow
 Requires:       iproute2
 Requires(pre):  permissions
+Requires(post): permissions
 Requires(pre):  %fillup_prereq
 Requires(pre):  shadow
 Provides:       smtp_daemon
@@ -118,6 +119,7 @@ BuildRequires:  fdupes
 %endif
 %if 0%{?suse_version} >= 1330
 Requires(pre):  group(%{mail_group})
+Requires:       group(%{mail_group})
 %endif
 %if 0%{?suse_version} > 1210
 BuildRequires:  systemd
@@ -613,7 +615,7 @@ fi
 %if 0%{?suse_version} >= 1210
 %dir %{_sysconfdir}/postfix/system
 %config %attr(0755,root,root) %{_sysconfdir}/postfix/system/*
-%config %{_unitdir}/system/postfix.service
+%{_unitdir}/system/postfix.service
 %else
 %config %attr(0755,root,root) %{_initddir}/%{name}
 %endif