Invalid email

[Zariah]

My friend is trying to create a Xiaomi account but every time it says the email is invalid. The email address is a gmail account in constant use. Can anyone help?

 

[PervizMikail]

My friend is trying to create a Xiaomi account but every time it says the email is invalid. The email address is a gmail account in constant use. Can anyone help?

Maybe he uses it not to create an account but to log into it