This update
adds a PreferProvidedEmailInAutoDiscoverAuthPrompts registry key that enables
Exchange administrators to specify whether users will be authenticated by using
the configured account email or the user principal name (UPN) during
AutoDiscover scenarios.
Registry key
Location:
HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\AutoDiscover
Value Type:
DWORD
Value name:
PreferProvidedEmailInAutoDiscoverAuthPrompts
Value data:
- 0: It's the default value. Outlook will use the UPN when it's
available.
- 1: If the value is set to 1, Outlook will ignore the UPN and
just use the provided account email.
It also fixes the following issues:
- Outlook doesn't show
original URL on hover on an email message with more than 50 URLs.
- Fixes a memory leak when you use Outlook 2016.
- When you
save an email message to the Drafts folder after you change the sender
in online mode, the sender name is changed to the LegacyExchangeDN
value.
- When you copy an
attached email message from the preview pane, and then paste it in an inline
reply, Outlook 2016 crashes.