IP does not have any bad reputation but Reject by Symantec Messaging Gateway | Email Security.cloud
SMG Administration Guide | PDF | Malware | Public Key Certificate
URL Reputation protection is not functioning properly due to an internal configuration error" message on Symantec Endpoint Protection GUI after upgrade to 14.3RU1 and later
Use the Web Reputation Service
Check IP Reputation — Check IP Reputation Playbook latest documentation