When using your presentation computer you may want to still be able to send emails but not want to download your entire Exchange mailbox to your Boot2VHD image. This is especially relevant for people with large mailboxes.
Here is how you do it:
Open Outlook and create a new Exchange account:

Enter your server name and username, but un-tick
Use Cached Exchange Mode :

Finish the setup and then open Outlook
Configure your Send / Receive Groups:

Now we can choose the parts of our mailbox we want to synced to our PC. The following options are recommended:
Untick
Receive Mail Items
Tick
Download offline address book
Tick the
Outbox folder
Tick the
Contacts folder
Tick the
Sent Items folder,
and select
Download headers only

When back in the main Outlook window click
Send / Receive All Folders and this will sync your sent items and contacts which will now be available offline
Suggestion to the Microsoft Outlook Team: