--- a/mod_s2s_auth_dane/mod_s2s_auth_dane.lua	Wed Mar 19 19:39:03 2014 +0100
+++ b/mod_s2s_auth_dane/mod_s2s_auth_dane.lua	Wed Mar 19 19:48:06 2014 +0100
@@ -50,7 +50,7 @@
 local function dane_lookup(host_session, cb, a,b,c,e)
 	if host_session.dane ~= nil then return end
 	if host_session.direction == "incoming" then
-		local name = idna_to_ascii(host_session.from_host);
+		local name = host_session.from_host and idna_to_ascii(host_session.from_host);
 		if not name then return end
 		host_session.dane = dns_lookup(function (answer)
 			if not answer.secure then