How do I delete requester email address

How do I delete requester email address

We're trying to remove a few email addresses from our list of requesters. But it will not allow us to save the changes made unless we enter a different email address. Is there any way we can remove email addresses rather than replace them with new ones? When we remove the email address in the requester record and press save, the old email address is still there when we look at the record.

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