View previous customer history by email address?

View previous customer history by email address?

Hi Zoho support,
Thank you for your excellent product.

Is it possible to view previous tickets, grouped by the same email address of the customer?

I have a customer who contacts us every few months.
She uses the same email and different aliases every time.
She's a little "cooky"...

It would be a nice feature to get to see if we already have an email address in our customer database.

Please let me know if such a feature exists already.

All the best,
Ron