Using Office 365 with Outlook client. User has about 6 aliases (former employees).
When he goes to send an email, the TO: field shows as one of those aliases instead of his actual primary email address.
Any ideas how to correct his?
Clarification: When the user sends the email, it is being sent from the correct email address, however, it actually shows the display name of the alias (even though there is no display name entered for an alias().