I own a domain name, let's say domain.com. Is there a way to send and receive email using Gmail's "Send mail as" function? For example, set up an alias firstname.lastname@example.org? Forgive my ignorance, as I'm a total neophyte when it comes to the technical workings of email.
Backstory: I bought a domain name from Google and web hosting through Siteground. I set up gmail to send and receive email for my new email account email@example.com using the "send as" function. The web hosting expired, but I still own the domain, AND for some reason I still receive email that is sent to firstname.lastname@example.org, but I can't send email as this address (I get a "message not delivered" error).
So do I need to get another web host to use an SMTP server? Or can I use Gmail's POP/IMAP and SMTP servers to route mail? And if so, how? It looks like I need an SMTP server address, and a username and password.