Help the forum help you. Tell which version of Outlook and what MODE it is in.
If this is a business, you don't have to answer, but why isn't your IT being tasked with this?
My company recently changed names. The company name is/was part of our email address (jbloggs@abcCo.com). I updated my address book to change the employee email addresses with the new company name (jbloggs@xyzCo.com). I verified each address and confirmed that there are no longer any email addresses with the old "abcCo.com" name.
When I begin typing an address to a person in the company, the addressee's name will pop up twice - once with their old abcCo address and one with the new xyzCo address.; I have to watch that I don't select the old address as it will not be delivered.
How do I clear the old addresses from my computer's memory. I have no reason to ever use these old addresses again, but I don't know how to eliminate them.