Before we complete the setup of Email Security.Cloud service we must perform a few tests to validate everything is configured correctly.
Below you will find the recommended steps we advise to take before you enter your technical details in the Domain addition wizard on our Symantec.cloud Portal.
Open Relay Check
You can check whether your IP address has been blacklisted or not with the following sites:
Please note: If your IP address is blacklisted, you are advised to find out the reasons why to prevent it from happening again.