It gives you unique, random email addresses that are forwarded to your email when you want keep private your personal email
Hide My Email app gives you unique, random email addresses (or "aliases") that are forwarded to your primary mailbox when you want your personal email address to remain private. Additionally, these email addresses can be easily deleted at any time, effectively blocking unwanted emails from reaching your inbox. Whether you're signing up for a new service or just want to keep your personal email private, Hide My Email has you covered.