[Fix] Prefer 'MTA-Name' when producing authentication results

lualib/lua_auth_results.lua

@@ -78,7 +78,8 @@ local function gen_auth_results(task, settings)
     symbols = {}
   }
 
-  local mta_hostname = task:get_request_header('MTA-Tag')
+  local mta_hostname = task:get_request_header('MTA-Name') or
+      task:get_request_header('MTA-Tag')
   if mta_hostname then
     table.insert(hdr_parts, tostring(mta_hostname))
   else

src/libserver/milter.c

@@ -1318,11 +1318,6 @@ rspamd_milter_macro_http (struct rspamd_milter_session *session,
 		}
 	}
 
-	IF_MACRO("{daemon_name}") {
-		rspamd_http_message_add_header_len (msg, MTA_TAG_HEADER,
-				found->begin, found->len);
-	}
-
 	IF_MACRO("{v}") {
 		rspamd_http_message_add_header_len (msg, USER_AGENT_HEADER,
 				found->begin, found->len);