Once you have established that the IP address is being blocked, you can send a removal request for each list.
Send a request to your administrator or ISP provider.
If you are the administrator or ISP provider, send a request to Trend Micro:
Click the Request to be removed from the global blocked list link.
You need to provide the requested information on the web form.
Removal requests have to come from an authoritative account such as: abuse@(domain name) or postmaster@(domain name). This ensures that Trend Micro is in contact with the valid owner of the IP block(s).