diff --git a/parsons/mail.nix b/parsons/mail.nix
index 7f4af6e..7d25d7b 100644
--- a/parsons/mail.nix
+++ b/parsons/mail.nix
@@ -195,7 +195,8 @@
     bindIP = "[::1]";
   };
 
-  systemd.services.alps.after = [ "dovecot2.service" ];
+  systemd.services.alps.after = [ "dovecot2.service" "postfix.service" ];
+  systemd.services.alps.bindsTo = [ "dovecot2.service" "postfix.service" ];
 
   services.nginx.virtualHosts."mail.hacc.space" = {
     enableACME = true;