http://mxtoolbox.com/blacklists.aspxUse this link to check IP status, key in the IP to and the result will shows as below.
Click “Detail”
Click the highlighted link
Fill in the details to request for whitelist
http://ipremoval.sms.symantec.com/lookup/symentec IP blacklist lookup
Below picture shown if the IP is not blacklist in Symantec system.
