How do I remove contacts from showing when typing in the TO field?

[Guest]

When you compose a new email and start to type in the TO field. Outlook
starts to give you suggestions of possible matches. How do I clear or modify
these values?

 

[Joe Grill]

Simply arrow down to the suggested email you wish to delete and hit the
delete key.

 

[Russ Valentine [MVP-Outlook]]

Remove individual addresses from the autocompletion cache by highlighting
the entry when presented in the suggested names list (use your arrow key to
migrate to the entry) and then hitting your Delete key before you tab out of
the field. If your autocomplete list contains only a single entry, use the
directions here:
http://support.microsoft.com/default.aspx?scid=kb;en-us;289975

To clear the entire cache, follow the instructions here:
http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q287623