Are client emails binding contracts?

Email Clients

A couple weeks ago, Karol wrote a great post about not getting cheated by your design clients. In that post, we recommended (as we always do) that you have a signed contract with most of your clients. But in the comments on that post, we had a fascinating question posted by GDB reader Ranjit that said this: Would emails and all other correspondence between client and designer not act as some sort of contract? I found Ranjit’s question extremely important