We have had this same issue with multiple contacts over the last couple months.   For us, 1) the email/contact does not show up anywhere in the account despite the system saying the email already exists, and 2) yes, we have been able to type in the email to add it to the database.   Please fix this.  It is a pain to completely re-enter the contact's whole information when we should have the ability to just update the email address.  Not to mention losing the contact's history as well. ... View more