0.1.3

CHANGELOG.txt

@@ -0,0 +1,2 @@
+0.1.3:
+- Added ambigious (4xx) response code handling

MANIFEST.in

@@ -1,6 +1,7 @@
 include AUTHORS
 include LICENSE
 include README.rst
+include CHANGELOG.txt
 recursive-include validate_email *
 prune tests
 recursive-exclude tests *

setup.py

@@ -26,7 +26,7 @@ class PostBuildPyCommand(build_py):
 
 setup(
     name='py3-validate-email',
-    version='0.1.2',
+    version='0.1.3',
     packages=find_packages(exclude=['tests']),
     install_requires=['dnspython'],
     author='László Károlyi',

validate_email/mx_check.py

@@ -57,4 +57,8 @@ def mx_check(
             return None
         if code == 250:
             return True
+        if 400 <= code <= 499:
+            # Ambigious return code, can be graylist, or temporary
+            # problems
+            return None
     return False