General Information
Most email clients have a feature called "Email Address Auto Complete". This feature allows you to type an email address into the "TO:", "CC:", or "BCC" fields and have a suggested email show in the text field, selectable by pressing Enter.
- Outlook will display a list of corresponding e-mail addresses from the auto-complete cache. For example, e-mail addresses that you have already used.
If it's necessary to remove these cached email addresses from the list, such as in the case of the LSU conversion to LSUMail, you will need to Clear the E-mail Cache.
Clear the E-mail Cache
Outlook 2016