Exchange 2010 uninstall exchange and install on another server

A Co-worker deleted or renamed the default site. I removed the links from the website in IIS via powershell remove-owavirtualdirectory. I then uninstalled the CAS role from the server and I am having alot of issues installing the CAS role again. At This point im going to uninstall Exchange on this server and install it on another member server. I have read to try uninstalling and reinstalling iis as well to bring back the default site but we have a couple commercial sites that can't go down for too long. I want to make sure everything that links to the old exchange server is gone.  How do I correctly uninstall this properly? Just go to programs and features and click uninstall on the Exchange 2010? Also can I bring the mailboxes from the old server and if so how?
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tsaicoConnect With a Mentor Commented:
I would treat this as a server migration.  There are more specifics, but it woudl generally move like
1. Install Exchange to new server (should already be part of domain by this point) with all the roles you intend to run, which sounds like MBX, HT, and CAS.
2. Run BPA and make sure no error messages, correct any as you move along.
3. Migrate mailboxes to other server. (The EMC has a link to the wizard for this)
4. Update firewall to reflect new internal IP of Exchange. Add HT connectors on new server for receiving mail and sending.
5. Once email is flowing to and from the site, uninstall from the old Exchange.
6. Delete the HT stuff linking your new exchange to the old one.
Will SzymkowskiConnect With a Mentor Senior Solution ArchitectCommented:
Do the following...
- Uninstall Exchange from Programs&Features
- Install Exchange on a new server
- Restore the mailboxes to the new Exchange environment
- Depending on the software you are running to do your backups you can restore the EDB and Logs to your new Exchange server.
- Make sure that the Exchange version is the same or the restores will not work

If you have any issues removing Exchange from the broken server you may need to use ADSIEdit to remove Exchange (last resort)
Remove Exchange using ADSIEdit -

ryanof01Author Commented:
Alright I installed the exchange on a different server. Disabled the send and receive connectors on the old database. Moved the Mailboxes to the new database and dismounted the old database. Now for one email domain all emails are stuck in the que and keep piling up. I am not sure what to do at this point in time.
Will SzymkowskiSenior Solution ArchitectCommented:
Is this an Accepted domain? If you open a message going to this domain it should display the reason for the delay... If you disabled the send or receive connectors then the domain might have been using one of those connectors to route the mail. You can also reference the event logs as well and ensure that you are not receive any errors.

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