I own a custom domain for my main email provider so if I switch to a new one I won’t have to change all my address for contacting people. I am considering buy a separate domain for just my email forwarding service.
What do people on here do?
Current Setup:
domain1.com - for main email
alias.domain1.com - for email forwarding with Addy.io
Option:
domain1.com - for main email
domain2.com - for email forwarding with Addy.io


If you’re using the forwarding subdomain emails for privacy reasons yes a separate domain would make more sense. It’s pretty obvious to tie your TLD to your forwarding subdomain. Either way use whois privacy for your domain registration.
I use 2 separate domains for this reason.