Contact subdomain admin

Current plan level (Free, Team, Business, or Enterprise: Retool | Retool Pricing): Free

Question / Description:

I have launched a project years ago with a subdomain, that I want to revive again, but I forgot which email address I have used to create that account. How can I contact myself / the administrator of that subdomain to see where the email pops out?

Or can a support agent tell me which address I have used?

Hi @MikaData! Could you DM me the name of your subdomain? I'll see what we can do for you.