Hi all, I have two domain forest. Forest01: dc01.hello.com is account forest are running Windows Server 2008 R2. Forest02: West.Exchange.local is Resource Forest are running Windows Server 2008 R2. I have installed Exchange Server 2010 SP1 named Ex01.exchange.local. My users mailbox is linked mailbox. The step to create linked mailbox is normal. Firstly, I create account in dc01.hello.com of Forest01. Secondly I create the linked mailbox in Ex01.exchange.local of forest02. If I have more users, I have running script to create linked mailbox as the following :- Script running in Exchange Management Shell: $credential = Get-Credential Import-Csv c:\scripts\importrecipient\recipients_script.csv | foreach {New-mailbox –Name $_.Name -Alias $_.Alias –firstname $_.firstname –lastname $_.lastname -OrganizationalUnit ‘exchange.local/users’ -UserPrincipalName $_.UPN –Database DB1 -LinkedMasterAccount $_.LMA -LinkedDomainController dc01.hello.com -LinkedCredential $credential } all list recipients_script.csv firstname lastname Name Alias UPN LMA khemarin set khemarin set setk setk@exchange.local setk@hello.com Visal man Visal man visalm visalm@exchange.local visalm@hello.com I noted: I can running this script success on ex01.exchange.local until I have created the account in dc01.hello.com My Goal. I want to create the script that can running without firstly to create the account in Account forest (dc01.hello.com) Noted: If I don have the account in the account forest. it help to create the account then create the linked mailbox Please kindly guide? BR, Khemarin Set Khemarin333@hotmail.com

Hi Khemarin, Per my knowledge, there might no direct way to do that by Exchange Server, maybe you can try to do that by programming. I suggest you post question in this forum, maybe somebody there can help you programming to achieve the goal: Exchange Development forum http://social.technet.microsoft.com/Forums/en-US/exchangesvrdevelopment/threads Thanks, Evan

Hi Evan, Noted with thanks, BR, Khemarin SetIf you found this post helpful, please give it a "Helpful" vote. If it answered your question, remember to mark it as an "Answer". Khemarin333@hotmail.com

I try with other solution: http://social.technet.microsoft.com/Forums/en-US/exchangesvrdevelopment/thread/d1873b25-3ab0-4bb3-86fe-f086d3fd96cd BR, KhemarinKhemarin333@hotmail.com