I have logged into the developer portal using my corporate email address. Our email format is firstname.lastname@companydomain1.com.
While attempting to set up the Service App, I am prompted to enter my email address. When entering my company email address (and bear in mind, I have already logged in with this), I receive the very incorrect error message "This field must be a valid email." If I remove the '.' between firstname and lastname, I still receive the invalid address message. If I then remove the '1' from the address, the error message disappears.
How do I enter dots or numbers in this field, especially as I have already logged in and authenticated using this same address?