Global Approved List
The global approved list is a collection of legitimate mail servers and helps reduce false alarms for spam filters. Before proceeding, please read the following:
This is not a guarantee
Nominating a mail server does not guarantee being added to the global approved list. Each nomination will go through a rigorous investigation process before a decision will be made. The investigation team may contact you for more information but Trend Micro is under no obligation to keep you posted on the progress.
Nominating will not unblock your mail server
If your mail server has already been blocked, you can submit removal requests to the lookup form.
This is a constantly changing list
A legitimate mail server that has been added to the global approved list can still be blocked in the future if it exhibits activity that triggers alerts.