If you have a Gmail account, you can use the iOS Gmail app or the iOS Mail app to host your account, as well as any other email account you've created. The Mail app also supports using an alias when sending messages. Learn how to use a Gmail alias in iOS Mail using an iPad or iPhone running iOS 12 or later.
How to set up an email alias on an iPhone or iPad
Here's how to add an alias to your Gmail:
Go to Settings > Mail > Accounts. (In iOS 12 or earlier, go to Settings > Passwords & Accounts, then tap your IMAP-enabled Gmail account.)
In the IMAP Account Information section, tap the arrow next to the email address.
