Importance of Real Email

Why is it important to have a real email address with your name in it? This morning I am trying to send a referral to someone I know. I like that fact that in Outlook, I can start typing someone's name and the email appears. I like to save time and not need to remember anything. I know this individual prides himself on the fact that he does not have a website, does not have a company name that is easy to remember, and obviously has some obscure email that does not contain his name. So now I am forced to go look him up. It is only an extra 10 seconds, but in the world of doing someone a favor, you want to make it as easy as possible.