diff --git a/nixbld-etc-nixos/configuration.nix b/nixbld-etc-nixos/configuration.nix
index 849fa980..590362d4 100644
--- a/nixbld-etc-nixos/configuration.nix
+++ b/nixbld-etc-nixos/configuration.nix
@@ -529,7 +529,7 @@ in
 
       mailer = {
         ENABLED = true;
-        HOST = "ssl.serverraum.org:587";
+        HOST = "mail.m-labs.hk:587";
         FROM = "sysop@m-labs.hk";
         USER = "sysop@m-labs.hk";
       };
diff --git a/nixbld-etc-nixos/rfq/uwsgi-config.nix b/nixbld-etc-nixos/rfq/uwsgi-config.nix
index b301fa35..68093da6 100644
--- a/nixbld-etc-nixos/rfq/uwsgi-config.nix
+++ b/nixbld-etc-nixos/rfq/uwsgi-config.nix
@@ -7,13 +7,13 @@ in {
   pythonPackages = self: [ pkg ];
   module = "rfq:app";
   env = [
-    "FLASK_MAIL_SERVER=ssl.serverraum.org"
+    "FLASK_MAIL_SERVER=mail.m-labs.hk"
     "FLASK_MAIL_PORT=465"
     "FLASK_MAIL_USE_SSL=True"
-    "FLASK_MAIL_USERNAME=sales@m-labs.hk"
-    "FLASK_MAIL_PASSWORD=${import /etc/nixos/secret/sales_password.nix}"
+    "FLASK_MAIL_USERNAME=sysop@m-labs.hk"
+    "FLASK_MAIL_PASSWORD=${import /etc/nixos/secret/sysop_password.nix}"
     "FLASK_MAIL_RECIPIENT=sales@m-labs.hk"
-    "FLASK_MAIL_SENDER=sales@m-labs.hk"
+    "FLASK_MAIL_SENDER=sysop@m-labs.hk"
   ];
   socket = "${config.services.uwsgi.runDir}/uwsgi-rfq.sock";
   # allow access from nginx