Set Account As Default In Outlook 2016. SetAccount for Microsoft Outlook 2016. On the Home tab click Address Book in the Find group.
Start Outlook 2016 add first mail account. On the Home tab click Address Book in the Find group. Setting Outlook as the Default mail client from Control Panel Press Windows key R and type control panel.
Select the Account Settings option.
To set up the default account select File Account Settings and then select Account Settings from the dropdown menu. To set up the default account select File Account Settings and then select Account Settings from the dropdown menu. Restart Outlook and then add a new account to the PST. In the resulting dialog choose Options from the Tools menu.