How To: Restore a removed Mailbox Database

After a Mailbox Database is deleted, the actual database file (.edb) is still there. To recreate the original database from this file, do the following:

1. Create a new empty mailbox database, using the New-MailboxDatabase command
2. Enable "Over-written by Restore", using Set-MailBoxDatabase
3. Move the old database files to the same location as the new database
4. Mount the database
5. If restoring on a new exchange server, run Move-Mailbox - ConfigurationOnly

see http://technet.microsoft.com/en-us/library/aa998340.aspx

How to recover mail store (database) from exchange crash:

background: in 2007, can't mount mail store after crash.

1. reboot
2. run ESEUTIL /mh (mailstorepath\mailstore.edb) on all mail stores to determine if any store is in "Dirty Shutdown" state
3. run ESEUTIL /p (mailstorepath\mailstore.edb) on each "Dirty Shutdown" store
4. mount mail stores, if successful, go to end
5. if mount fails, move e00.chk, tmp.edb and catalogdata-xxx folders to other location
6. retry mount

How to change Exchange Proxy settings:

use Exchange Management Shell (PowerShell) command, Get-OutlookProvider and Set-OutlookProvider to set it:

• [PS] C:\>Set-OutlookProvider EXPR -CertPrincipalName "msstd:*.abcdef.com"

SMTP forwarding doesn't work with Roadrunner ISP:

when setting up exchange internet mail connector, use smtp-server.nyc.rr.com (smart host) for smtp forwarding.