1. Log in to Trend Micro Email Security
2. Under Inbound Protection, Select Connection Filtering > Sender Filter > Approved Senders
3. Select the Add button, and on the popup screen, input:
- *@mail-phishinsight.trendmicro.com
and then Select Add to List
4. Repeat the previous process and input:
- pawt@mailrelaysrv.com
5. The two domains should now be added to the Approved Sender List