https://www.suntrust.com/portal/serv...heck_card/1905

Says it requires signature not PIN, yet continues in T&C saying "Only signature-based purchases, Internet purchases, phone or mail order purchases or automatic bill payments qualify for mileage earnings. Cash advances, ATM transactions, payments for stored-value cards and purchases made with a PIN do not qualify."

So internet, phone and mail order without PIN or signature are OK. Not sure if that meets your needs, OP.