diff --git a/nixbld-etc-nixos/configuration.nix b/nixbld-etc-nixos/configuration.nix
index d6477447..c67cff16 100644
--- a/nixbld-etc-nixos/configuration.nix
+++ b/nixbld-etc-nixos/configuration.nix
@@ -897,6 +897,8 @@ in
     localDnsResolver = false;  # conflicts with dnsmasq
     fqdn = "mail.m-labs.hk";
     domains = [ "m-labs.hk" ];
+    enablePop3 = true;
+    enablePop3Ssl = true;
     certificateScheme = 3;
   } // (import /etc/nixos/secret/email_settings.nix);
   services.roundcube = {