what is email exchange
up vote 4 down vote. An email exchange or exchange of emails is a series of emails between two or more participants, each generally a response to the previous email.With multiple participants you can get a tree of parallel responses rather than a simple linear chain, but the principle is the same.share | improve this answer.p vote 4 down vote. An email exchange or exchange of emails is a series of emails between two or more participants, each generally a response to the previous email.