How I add you to my Safe Senders list via Google Mail (GMail)? 1. Click "Gmail" in the top left hand corner, then click "Contacts". 2. Click the Icon with a person and a + sign, then enter rainbowrichescasino.com and click the "Add" button. Related articles Contact Us Withdrawing My Balance When can I change my payment method? Deposit Limits How can I keep an eye on my withdrawal?