Bill.com's Sync Dashboard Tool is required to integrate QuickBooks Desktop with Bill.com.

Our Sync Dashboard Tool uses HTTPS (port 443) to communicate to our Sync Server (sync.bill.com).  Please use the following information to whitelist this application in firewall settings or Access Control lists (ACL).

Sync URL:  sync.bill.com
IP: 70.42.250.198
Port: 443 (HTTPS)