i had to create bulk mailboxes on exchange 2010 in my hosted environment, so i search on the internet for scripts and put them together to fit my environment. so i wanted to use, first name, surename, Display name, username, variable password and put the users in certain OU map in AD so my CSV file will look somehing like this fname,lname,username,password,OUPath els,konnick,els.konnick,Test123!,domain.local/customer/cust01 here is the script you can copy paste in a notepad and save it as .ps1 #csv file with fields:fname,lname,username,password,OUPath import-csv 'C:pathtocsvfileuserlist.csv' | Foreach-object { $Fname = $_.FName $LName = $_.LName $DisplayName = "$FName $LName" $User = $_.Username $Password = convertto-securestring $_.password -asplaintext -force $OUPath = $_.OUPath New-Mailbox -UserPrincipalName $User@yourdomain.com -Alias $User -Database "Mailbox Database" -Name $DisplayName -Password $Password -FirstName $FName -LastName $LName -DisplayName $DisplayName -OrganizationalUnit $OUPath } if you need the rest of the script to create global address list, addres policy, address book, accepted domain [...]