How do I delete unwanted emails addresses downloaded by BB Link?

I have a new Q10 and when I used Blackberry Link to sync with Outlook it somehow found an old list of email addresses (hundreds of them) that I don't want. Presumably the list was uploaded years ago when I had a Windows phone (without asking me). I've never used Exchange Active Sync & don't even know how to. The addresses are not in my current list of contacts on Outlook.

Delete the account from your device. Re-add it on your device and set it up to sync contacts and whatever else you want. (don't use Link to do it).
See if that makes a difference

Link is weird...