An email exchange between the two on January 19 is instructive:

The result of that email exchange was this Twitter exchange above.

I just had an interesting email exchange with John, and we concluded that this is often the target market.

Thenews of the email exchange has prompted school officials to investigate.

Dawn places an ad on a website and the book highlights the email exchange leading up to each date.

He later published an email exchange between himself and Mercurio.

The link "published an email exchange" in the article is broken.

And, well, this email exchange is all you need to know.

What is your own interpretation of the email exchanges?

However, I would confirm the reservation with an email exchange so there's proof in writing.