Outlook 2007 slow connecting Hosted Exchange on LAN only

exchangelocal-area-networkoutlook-2007wide-area-network

Were migrating to a hosted exchange service from rackspace.com from an in-house exchange server.

Outlook 2007 on the LAN where the in-house exchange server is located connecting to the hosted exchange mailbox takes painfully long (almost 4 minutes) before it's connected to hosted exchange box.

Outside the LAN from my home DSL 3000 down/512k up and from a verizon EVDO modem (even slower) Outlook connects within 10 seconds.

Is the exchange server on the LAN interfering at all? I've tried dismounting the stores and disabling the exchange services and it doesn't make a difference.

Best Answer

I discovered a setting that made everything better. In Outlook in the Account Settings -> More Settings -> Connection tab -> Exchange Proxy Settings.

Check "On fast networks, connect using HTTP first, then connect using TCP/IP"

So Outlook 2007 considered our LAN as a "fast network" and my home as slow, hence why I didn't see these delays outside

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Outlook 2007 says too many open items

Have you tried this KB article?

http://support.microsoft.com/kb/953807

There was a Technet newsgroups moderator that suggested it.

It appears to be only an issue with Outlook 07 itself, not Exchange...as Outlook 03 clients don't seem to have this issue. It appears to be related to large numbers of RPC calls or large numbers of folders in a mailbox (or even an attached additional mailbox you are connected to).

Is Outlook at sp2 (office 07 sp2)?

Mailbox permissions in Exchange 2007 driving me nuts

I'm going to make a guess that you're not using security groups to manage the permissions on these mailboxes. I'd recommend, before you do anything else, that you create a security group for each logical grouping of users who need special permission on each mailbox, place the appropriate users into those groups, and grant permission using the groups.

(Beware-- the users' security token may be cached by the Exchange Server computer and it might not see the update group membership immediately. Depending on your environment it could take up to 2 hours in a stock configuration for the server to "see" the change. More details at http://theessentialexchange.com/blogs/michael/archive/2008/01/18/Exchange-Server-Caches.aspx if you want to know more about what I mean.)

By doing this with a group you eliminate the need to modify the permissions in the future if job roles change, etc, for the people involved. You need only specify the right group memberships for new users, changed job roles, etc, and the permissions "just work".

Using the Exchange Management Shell, grant "Full Mailbox Access", "Receive-As", and "Send-As" permission with the following commands:

Add-MailboxPermission "Mailbox Na,e" -User "DOMAIN\Group NAme" -AccessRights FullAccess
Add-ADPermission "Mailbox Name" -User "DOMAIN\Group Name" -ExtendedRights Receive-As,Send-As

Obviously, substitute in the mailbox name and group name where appropriate.

(Users with Full Mailbox Access don't have "Send As" permission-- see http://technet.microsoft.com/en-us/library/dd421860.aspx for details)

Best Answer

Related Solutions

Outlook 2007 says too many open items

Mailbox permissions in Exchange 2007 driving me nuts

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