Please use a personal email. My email is ‘mail’ @ ‘my actual name’. It does not get more personal than that
But you can’t use emails starting with mail@, admin@, support@, info@, main@, etc.
Instead they advised me (3 times) to create a personal email on a service like Yahoo, Outlook, Gmail, Orange, etc
I just go with full domain names. Like change.org@yourna.me. Even combos where data is shared, like shop.com-bank.org@your.name or jitsi.corp-gravatar.com@your.name. But some places actually went out of their way to disallow their own domains anywhere in the field. I’ve encountered it maybe like 3 times across all of ~1000 logins I have in my password manager.
And the amount of times I had to explain to people that yes, this is a legit email, yes it has your company’s name and your personal name in it, it is exactly as intended, so don’t send me spam because I will know it was you who sent it…