Sometimes the website or domain you are purchasing has significant value and may require more documentation then a simple e-mail.
Here is a sample website sales agreement or can also be used as a domain name sales or purchase agreement.
Download free sample website purchase agreement in Microsoft word:
lou-for-acquisition-of-website
LETTER OF UNDERSTANDING for acquisition of www.domainprotege.com
June 22, 2007
(name)
(street [...]
