2. Use an Anonymous Email Account
You can set up a relatively anonymous Gmail account, provided you don’t give Google your real name, location, birthday, or anything else the search giant asks for when you sign up (while using a VPN and the Tor Browser, naturally).
You will eventually have to provide Google some other identifying method of contact, such as a third-party email address or a phone number. With a phone, you could use a burner or temporary number. An app like Hushed or Burner works, or buy a pre-paid cell phone and provide bogus personal information, if prompted.
Guerrilla Mail provides ephemeral messaging—disposable, temporary email you can send and receive—and it’s all free. Technically, the address you create will exist forever, even if you never use it again. Any messages received, accessible at guerrillamail.com, only last one hour. You get a totally scrambled email address that’s easily copied to the clipboard. You can attach a file if it’s less than 150MB in size, or use it to send someone your excess Bitcoin.
There’s an option to use your own domain name as well, but that’s not really keeping you under the radar. Coupled with the Tor browser, Guerilla Mail makes you practically invisible.
An open-source tool for creating unlimited email aliases, AnonAddy doesn’t store any messages. It lets you make as many as 20 shared domain alias (like @janedoe.anonaddy.com), or an unlimited amount of standard aliases using “anonaddy.com” for the address. But you get a lot more if you pay for the plans that start at $1 per month, like support for your own custom domain name. It also offers extensions for Firefox, Chrome, Brave, and Vivaldi browsers.