From 6a6dba816ffdbe9d76ae6e121b67dc3ab34156d0 Mon Sep 17 00:00:00 2001
From: niten <niten@fudo.org>
Date: Sat, 14 Oct 2023 23:53:20 -0700
Subject: [PATCH] Need to be more explicit...

---
 mail-server.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mail-server.nix b/mail-server.nix
index 600370a..ee90482 100644
--- a/mail-server.nix
+++ b/mail-server.nix
@@ -307,7 +307,7 @@ in {
                   local-domains = cfg.extra-domains;
                   hostname = cfg.smtp.hostname;
                   trusted-networks = let
-                    isIpv6 = net: !isNull (builtins.match ":" net);
+                    isIpv6 = net: !isNull (builtins.match ".+:.+" net);
                     addIpv6Escape = net:
                       let components = builtins.split "/" net;
                       in "[${elemAt components 0}]/${elemAt components 1}";