From d0f95e81b2fad37fe7f51c1eb8a47b2305a2b9b3 Mon Sep 17 00:00:00 2001
From: Son NK <nguyenkims@hotmail.com>
Date: Sat, 7 Dec 2019 23:42:57 +0100
Subject: [PATCH] fix MX record can be unavailable

---
 app/dns_utils.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/dns_utils.py b/app/dns_utils.py
index 00614246..c8d4d09c 100644
--- a/app/dns_utils.py
+++ b/app/dns_utils.py
@@ -2,7 +2,11 @@ import dns.resolver
 
 
 def get_mx_domains(hostname) -> [str]:
-    answers = dns.resolver.query(hostname, "MX")
+    try:
+        answers = dns.resolver.query(hostname, "MX")
+    except dns.resolver.NoAnswer:
+        return []
+
     ret = []
 
     for a in answers: