sharing experiences…
When you’re trying to send an email to a distribution group, the following error may be returned:
Delivery has failed to these recipients or distribution lists
Your message wasn’t delivered because of security policies in Exchange 2007. Microsoft Exchange will not try to redeliver this message for you. Please provide the following diagnostic text to your system administrator.
On an Exchange 2007 server, the following event may show up in your Eventlog:
Event Type: Error
Event Source: SideBySide
Event Category: None
Event ID: 59
Date: 12/5/2008
Time: 12:30:39 AM
User: N/A
Computer: EXCHANGE2007
Description:
Generate Activation Context failed for C:\WINDOWS\WinSxS\amd64_Microsoft.VC80.MFC_1fc8b3b9a1e18e3b_8.0.50727.762_x-ww_6E02DFE5\MFC80U.DLL. Reference error message: The referenced assembly is not installed on your system.
When you have deleted an mail-enabled Active Directory account, the mailbox will be moved to Disconnected Mailbox in your Exchange Management Console.
To delete (purge) the disconnect mailboxes from a database, you run the following command from your Exchange Management Shell:
Get-MailboxStatistics -database "server\database" | where {$_.disconnectdate -ne $null} | foreach {Remove-mailbox -database $_.database -storemailboxidentity $_.mailboxguid}
After moving an Exchange 2007 server to another Organizational Unit (OU) in Active Directory, the following event may occur:
After the installation of Exchange 2007 SP1 rollup 4, the Microsoft Exchange Service Host service and the Microsoft Exchange File Distribution service may fail to start.
The following events will be present in your EventLog (System):