diff --git a/services/mail-server.nix b/services/mail-server.nix
index 86615ea..9b61126 100644
--- a/services/mail-server.nix
+++ b/services/mail-server.nix
@@ -52,6 +52,15 @@ in
       enableManageSieve = true;
     };
 
+    services.postfix = {
+      relayHost = "mailvps.nyanlout.re";
+      relayPort = 587;
+      config = {
+        smtp_tls_cert_file = lib.mkForce "/var/lib/postfix/postfixrelay.crt";
+        smtp_tls_key_file = lib.mkForce "/var/lib/postfix/postfixrelay.key";
+      };
+    };
+
     security.acme.certs = {
       "${cfg.domaine}" = {
         extraDomains = {