here is more details:
I follow the guide:
i go to the settings → account → login to cloudflare zero trust → enter the team name
than it redirect me to a web page that i need to put my email address (the account owner email)
and it sais that it send me t code tot the mail → and i never get it, even not in the spam or deleted items.
it seems that the cloudflarre not sending the code.
i tried to use several email addresses but got nothing.
i attached the screen shot of what i got