diff --git a/etc/systemd/system/nginx.service b/etc/systemd/system/nginx.service
index e1e5512..ee4ade8 100644
--- a/etc/systemd/system/nginx.service
+++ b/etc/systemd/system/nginx.service
@@ -25,6 +25,7 @@ SystemCallArchitectures=native
 ReadWritePaths=-/var/log/nginx/
 ReadWritePaths=-/var/lib/nginx/
 ReadWritePaths=-/var/www/var/run/
+ReadWritePaths=-/var/spool/postfix/
 ReadWritePaths=-/run/
 InaccessiblePaths=-/root/
 RuntimeDirectory=nginx