My computer slows down when Outlook shows the "Updating Address Book" status. In computers with slow hard disk drives, such as portable computers, or running Outlook in a Virtual machine, the process of updating the address book can slow down the computer if the hard disk is fragmented.
To improve offline address book download performance, try defragmenting your hard disk.
You cannot use Cached Exchange Mode with a POP or IMAP account.
If Outlook is stuck in Offline mode, see Work offline in Outlook.
In fact, Outlook cached mode will continue to download the offline address book every 24 hours regardless of whether the option is enabled.
Note: To locate this option, follow these steps: On the Tools menu, point to Send/Receive, point to Send/Receive Settings, and then click Define Send/Receive Groups. When you click to select the Download offline address book check box and then click Address Book Settings, the Offline Address Book dialog box appears.
By default, 12 months of your email is available offline, but you can control how much mail is kept offline.
If you want to send the message immediately, do the following: In addition to Exchange folders, Cached Exchange Mode works with shared folders.var microsoft = microsoft