I have build a email validation in my sheet where entered emails from a form are entered in a contact field. another field verify the address and validades using the following formula:
=IF(FIND("@xxxxxxx.com", [Student eMail]@row) = 0, 0, 1)
if the checkbox is triggered (=0), then the registration is valid, and the the sheet will check other variables. If the checkbox is not triggered (<> 0) then there is an error and the registration is not validated.
Lately, there is an inconsistency: I received several registrations from the same domain. Some of them are accepted (checkbox = 0) some of them are not… but the domain is the same.
any idea???