I'm trying to create a Facebook account with a Gmail email and it's giving me the error
You cannot register for Facebook with that email address. To go back click here.
Any ideas? I cannot find any documentation on this error. The email address is valid, contains no special characters, and I have access to the email.
I tried an existing email that a friend uses, and this is definitely not an error around the email already used on Facebook. If that were the case, it'd give an error like:
Sorry, it looks like firstname.lastname@example.org belongs to an existing account. Would you like to claim this email address?