Ignore brackets in SMTP relay.

tests/test_email.py

@@ -56,9 +56,9 @@ def check_relay():
     print('Checking if SMTP relay conforms to conf.')
     status, out = subprocess.getstatusoutput('grep relayhost /etc/postfix/main.cf')
     if status == 0:
-        configured_relay = out[len('relayhost'):].strip(' \t=')
+        configured_relay = out[len('relayhost'):].strip(' \t=[]')
     else:
-        configured_relay = None
+        configured_relay = ''
     if not configured_relay:
         # no relay configured, check relayless situations
         ip = conf.get('NETWORK_IP_NAT')
@@ -74,7 +74,7 @@ def check_relay():
             if ip not in output:
                 print_red('ip %s is not in ubicast.eu SPF and emails sent from support@ubicast.eu will be treated as spam' % ip)
                 return 1
-    conf_relay = conf.get('EMAIL_SMTP_SERVER')
+    conf_relay = conf.get('EMAIL_SMTP_SERVER', '').strip('[]')
     if conf_relay != configured_relay:
         print_red('Configured STMP relay (%s) does not match the expected value (%s).' % (configured_relay, conf_relay))
         return 1