Caching shared (additional) mailboxes in Outlook 2007

Since the introduction of Cached mode in Outlook, we've seen issues with customers not understanding why additional mailbox access was so slow. Personal mailboxes were cached but unfortunately it was not possible to cache the additional mailboxes, resulting in a confusing experience for end-users.

Well, the Outlook team finally made this possible! There already was an Outlook 2007 post-SP1 update (KB 957909) which made caching of additional mailboxes possible, but since the introduction of Office 2007 SP2 it's finally available to everyone :-) Just install SP2, open up registry editor, head over to  HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Cached Mode  or  HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\12.0\Outlook\Cached Mode, add a DWORD value named CacheOthersMail and assign it the magic value of "1". Next, disable "header downloads": In Outlook select File and then click Cached Exchange Mode. Clear the following options when enabled: Download Headers and then Full Items, Download Headers, On Slow Connections Download Only Header.

Finally, sit back, relax and enjoy the fast access to your shared mailboxes (hmmm, what's the use of having fast access to a mailbox while sitting back? Anyway: you get the point ;-) )

 

For more information, see http://support.microsoft.com/kb/955572

Posted: 8 May 2009 8:03 AM by Maarten Piederiet | with 2 comment(s)
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Comments

steve eves said:

I have installed SP2 on outlook2007 but the Regstery entrys:-

 HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Cached Mode  or  HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\12.0\Outlook\Cached Mode

Do not exist.

# June 8, 2009 8:31 AM

JSkills said:

If you do not see thar registry entry look for this one as stated in the Microsoft KB.

HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\12.0\Outlook\Cached Mode

# June 30, 2009 9:12 AM