Cached Email Addresses

[jerrywein]

When you type a name in the "Send To" box a list of email addresses/Names you previously entered shows up in a drop down. My problem is there are email addresses/Names that I need to remove from this cached list because I'm not supposed to use them. In my case I have several email addresses under one name. I have removed this bad email address from my contacts list but it still shows up in the cached list when I type in a name. How can I either clear out the cached list or remove the cached email address that is a problem.

Thanks in advance, Jerry