Receive What You Buy - Prevent identity, mail and package theft. Stop porch pirates with our locking mail boxes for house outside. This post mounted mailbox features an anti-phishing panel and anti-pry latch. Keep out sticky fingers with Adoorn's mail box. Receives All Types Of Mail: Easily accessed by mail carriers and delivery drivers, our post mount mailboxes for outside receive small and large envelopes, poly-bag style mailers and packages up to 16" x 10" x 2.5". This 15.5 x 12 x 18.5" (HxWxD) locking mailbox holds 7-14 days of mail.