This article shows how users can determine whether an IP address is in the anti-spam database.
To determine whether an IP address is considered a spammable IP address, go to https://www.sophos.com/en-us/labs.aspx? , scroll down to IP Address Lookup, and fill in the IP address that you want to query against.
2024-10-24: minor non tech changes
2019-11-28: Updated URL in Solution (previous version is outdated) and added additional SRX categories