Username = Name?

My work email consists of my first name for the username and company name for the domain. The other day, I had one client send me an email and in the body of the message, he totally mangled the spelling of my name. I'm not sure how he managed to type in the correct spelling for the email address, then type in something else completely different in the body. Some people should not be allowed to use a computer. Automation is made to help us in efficiency, but it's also making some people dumber.