Hello. I need some help. This is probably a vlookup issue? Thank you in advance.

What I need to do:
I've got two worksheets, each with a column that is an email address.
Worksheet 1 is a list of orders. Worksheet 2 is an email contact list with a version number that I want to display in Worksheet 1. (Ex. Email Address ABC in Worksheet 1 would show "Version A" coming in from the appropriate column in Worksheet 2. I want to see which orders came from the various versions.) Caveat: Worksheet 1 will have multiple instances of the email address if there were multiple orders, while Worksheet 2 has the email address only once.