Remove a single recipient from your Outlook on the web Auto-Complete list

Sign in to Outlook on the web using this link: microsoft365.com and your 8-character username @uwaterloo.ca (e.g. myuserna@uwaterloo.ca) and password

Click the New mail icon

Start typing the name or email address of the recipient that you would like to remove in the To field until the recipient appears in the drop-down list.

Open

Use the Down Arrow and Up Arrow keys to select the recipient, and then press the Delete key.