I'm moving to a new email provider (Proton) and it offers a built-in feature called "proxy email addresses".
So, I issued a proxy address to use as my email for Atlassian (atlassian@alias.my-domain.dev - I replaced the domain for privacy)
Atlassian tells me:
The provided email address is not allowed, please use a different one"
Why is it not allowed and which one I'm allowed to use with my domain?