I'm not sure about cheaper, but you could use an email address from another provider without a custom domain. That could be an @fastmail.com (or other domains F

I'm not sure about cheaper, but you could use an email address from another provider without a custom domain. That could be an @fastmail.com (or other domains Fastmail supports) address or an email address from Posteo.de (paid) or Tutanota.com (free/paid) or Mailfence.com (free/paid) or ProtonMail.com (free/paid). The risk of getting locked out is negligible with these providers. Fastmail and Posteo have been around for a very long time and it's not likely they'd shutdown in the next decade or two (giving you plenty of time to re-plan as time passes). You may change the email address with your domain registrar at any point in time to manage future risks. My suggestions: * stick with a (preferably paid) email account on a domain that's not yours but is likely to be around for a long time * choose one of the common TLDs like .com or .net or .org for the email address (these TLDs have the least likelihood of disappearing or being blocked by anyone) * make sure you keep the email address active (by logging in and/or paying on time)