E-mail lookup to get data from CRM Contacts

E-mail lookup to get data from CRM Contacts

Hello averyone,

I need to create a form where user will first input their mail address and form should do a lookup in CRM contacts. If e-mail already exists, other fileds like name, phone, address, etc must be pre-filled. I want this to avoid returning users keep filling same data over and over.

How can I do this? Thanks!

Jeff