fix: Avoid failure if dns key is not in the config file.

mail2misp/mail2misp.py

@@ -36,6 +36,8 @@ class Mail2MISP():
         if not self.offline:
             self.misp = PyMISP(misp_url, misp_key, verifycert, debug=config.debug)
         self.config = config
+        if not hasattr(self.config, 'enable_dns'):
+            setattr(self.config, 'enable_dns', True)
         self.debug = self.config.debug
         self.config_from_email_body = {}
         # Init Faup

tests/tests.py

@@ -60,6 +60,7 @@ class TestMailToMISP(unittest.TestCase):
         self.mail2misp.process_email_body()
         self.mail2misp.process_body_iocs()
         self.assertTrue('attachment' in [a.type for a in self.mail2misp.misp_event.attributes])
+        self.assertTrue(self.mail2misp.misp_event.publish)
 
 if __name__ == '__main__':
     unittest.main()