i have an error when provision users to exchange 2007 The extensible extension returned an unsupported error in MIIS.The stack trace is:"Microsoft.MetadirectoryServices.ExtensionException: **** ERROR **** ExternalEmailAddress is mandatory on MailUser. **** END ERROR **** **** ERROR **** The mail contact and mail user must have a valid external e-mail address. **** END ERROR **** at Exch2007Extension.Exch2007ExtensionClass.AfterExportEntryToCd(Byte[] origAnchor, String origDN, String origDeltaEntryXml, Byte[] newAnchor, String newDN, String failedDeltaEntryXml, String errorMessage)Microsoft Identity Integration Server 3.3.0118.0" For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. i'm running ILM + powershell and managment tools SP1+ rollup 4 in the same server, and win 2008 + exchange 2007 SP1 + rollup 4 in another server . any ideas .

the mailboxs created successfully but i still see the export error and the event log error.

How are you provisioning your users for Exchange 2007? I.e. what attributes are you writing to? This issue was supposed to be fixed with Rollup 4. Here is some Exchange PowerShell code that should correct accounts that were not provisioned correctly: Code Snippet $users = (Get-Mailbox -ResultSize unlimited | Where-Object {$_.ExchangeVersion -like "0.0*" -and $_.ServerName -ne "exchange2003server"}) foreach($user in $users){Write-Host $user.Alias, $user.ExchangeVersion, $user.ServerSet-Mailbox $user -ApplyMandatoryProperties} If you do not have any Exchange 2003 servers, you can remove "-and $_.ServerName -ne "exchange2003server"" from the script.

i'm using ExchangeUtils.CreatemailBox() and AD MA with Enable 2007 provisioning . my exchange server is already running with rollup 4 . i'm also runing exchange 2003 in the same environment. any more configuration i'm missing ?

Are you getting this error on the sync or export step? The error talks about the mail address - what are you using for the mail address? What attributes are you populating? What does the object look like in the connector space(assuming it gets that far)? Carol

the error appear in export not sync, i don't import the email address, the scenario is exporting givenName and sAMAccountName, userPrincipleName and initials to Active Directory. the export successfully if the run it twice. but the first one get the error the 2nd update the users accounts and create mailBoxs , i think its exchnage problem not ILM. becase after the first run the mailboxs created with legacy MailBox and after the 2nd exportconverted to userMailBox