It is your auto-complete cache.

When you see the suggested names show, use your arrow key to select the one
you want to remove and press delete.

--
Milly Staples [MVP - Outlook]

ALWAYS post your Outlook version!
Post all replies to the group to keep the discussion intact.
How to ask a question: http://support.microsoft.com/KB/555375


"KiwiBrian" wrote in message
...
Outlook 2003.
When I go to send an email and start to enter the address I am
presented/prompted with several addresses.
How do I modify/edit/remove/delete any that are incorrect.
They are not in the Address Book.
I don't know what this facility is called and so can't Google for it.
TIA