Solved

Mailbox move with Cached Exchange Mode clients?

Posted on 2008-06-13
2
960 Views
Last Modified: 2008-06-14
I am moving from an old Exchange 2003 server to a clean install on new hardware.  Plan on using the "move mailbox" wizard in ESM.  From what I've read it looks like it SHOULD be fairly smooth sailing, but I'm wondering about the clients.  Most use Cached Exchange Mode and connect from outside the network (via RPC over HTTPs).  I know how to reconfigure the registry keys on the new Exchange server and on the GC on the network to ensure RPC over HTTPs continues to function properly.

What I'm wondering though is if each user will be forced to redownload all of their email?  In other words, will moving the mailbox to another server somehow invalidate their current OST file and force them to regenerate it?  Since they're clients on the internet, that could really bog down the internet connection in the main office.

My hope is that it will just continue as it did before and only download changes to their mailbox since they last opened Outlook.  Anyone done this before and can verify how it will behave?
0
Comment
Question by:esmith69
2 Comments
 
LVL 16

Accepted Solution

by:
Redwulf__53 earned 500 total points
ID: 21778657
"What I'm wondering though is if each user will be forced to redownload all of their email?"
No.
One thing to beware of is that if the new server's port 443 is not yet published to the internet (on the same public IP as the old server), the old server will need to function as a Front End server, so it acts as a proxy for the mailboxes that are hosted on the new server.

Ideally, you'd move all the mailboxes in one batch outside office hours and then change the port forwarding on your firewall, but if you need both servers to co-exist for a while, you must take care of this.
http://www.microsoft.com/downloads/details.aspx?FamilyId=E64666FC-42B7-48A1-AB85-3C8327D77B70&displaylang=en
0
 
LVL 9

Author Comment

by:esmith69
ID: 21778814
Correct, I'm doing all of the mailboxes at once and will then be reconfiguring port forwarding so that the hostname that's configured for them to connect to for RPC over HTTPs will point them to the new server.

Do you know if they'll have to go through the whole sync process again?  I guess it makes sense that it wouldn't download all of the message all over again since it would already find them present on the client side.  Now I'm wondering though if it's still going to scan all the contents of each mailbox folder.  50 people doing that at the same time (even if they don't end up having to actually download the message content) could still bog down the internet I would think.
0

Featured Post

Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

What does UTC stand for?  “Coordinated Universal Time” – Think of this as the true time on Planet Earth that never changes with the exception of minor leap seconds here and there to account for the changes in the planet's rotation.   What does th…
Find out what you should include to make the best professional email signature for your organization.
In this Micro Video tutorial you will learn the basics about Database Availability Groups and How to configure one using a live Exchange Server Environment. The video tutorial explains the basics of the Exchange server Database Availability grou…
With the advent of Windows 10, Microsoft is pushing a Get Windows 10 icon into the notification area (system tray) of qualifying computers. There are many reasons for wanting to remove this icon. This two-part Experts Exchange video Micro Tutorial s…

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question