When you need to deposit money into your PlainsCapital Bank accounts, there's no need to drive to a branch or ATM. With Bank by Mail, you can mail in your deposits using convenient, pre-printed envelopes. We'll process your deposit and send back a receipt and a new envelope for your next deposit. To get started with Bank by Mail, call customer service at 866-762-8392 to request an envelope, or stop by any PlainsCapital Bank location.