Creating folder using EWS Managed API 1.1 from PowerShell

WindowsEmailAddress
akasha@contoso.com
akashb@contoso.com
akashc@contoso.com

# The script requires the EWS managed API, which can be downloaded here:
# http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=c3342fb3-fbcc-4127-becf-872c746840e1
# This also requires PowerShell 2.0
# Make sure the Import-Module command below matches the DLL location of the API.
# This path must match the install location of the EWS managed API. Change it if needed.
[string]$info = "White"                # Color for informational messages
[string]$warning = "Yellow"            # Color for warning messages
[string]$error = "Red"                 # Color for error messages
[string]$LogFile = "C:\Temp\Log.txt"   # Path of the Log File
function CreateFolder($MailboxName)
{
    Write-host "Creating Folder for Mailbox Name:" $MailboxName -foregroundcolor  $info
    Add-Content $LogFile ("Creating Folder for Mailbox Name:" + $MailboxName)
    #Change the user to Impersonate
    $service.ImpersonatedUserId = new-object Microsoft.Exchange.WebServices.Data.ImpersonatedUserId([Microsoft.Exchange.WebServices.Data.ConnectingIdType]::SmtpAddress,$MailboxName);
    #Create the folder object


    $oFolder = new-object Microsoft.Exchange.WebServices.Data.Folder($service)
    $oFolder.DisplayName = $FolderName
    #Call Save to actually create the folder
    $oFolder.Save([Microsoft.Exchange.WebServices.Data.WellKnownFolderName]::Inbox)

    Write-host "Folder Created for " $MailboxName -foregroundcolor  $warning
    Add-Content $LogFile ("Folder Created for " + $MailboxName)
    $service.ImpersonatedUserId = $null
}
#Change the name of the folder
$FolderName = "My Folder"
Import-Module -Name "C:\Program Files\Microsoft\Exchange\Web Services\1.1\Microsoft.Exchange.WebServices.dll"

$service = New-Object Microsoft.Exchange.WebServices.Data.ExchangeService([Microsoft.Exchange.WebServices.Data.ExchangeVersion]::Exchange2010_SP1)
# Set the Credentials
$service.Credentials = new-object Microsoft.Exchange.WebServices.Data.WebCredentials("serviceAccount","Password","Domain")
# Change the URL to point to your cas server
$service.Url= new-object Uri(http://CAS-Server/EWS/Exchange.asmx)
# Set $UseAutoDiscover to $true if you want to use AutoDiscover else it will use the URL set above
$UseAutoDiscover = $false
#Read data from the UserAccounts.txt
import-csv UserAccounts.txt | foreach-object {
    $WindowsEmailAddress = $_.WindowsEmailAddress.ToString()

    if ($UseAutoDiscover -eq $true) {
        Write-host "Autodiscovering.." -foregroundcolor $info
        $UseAutoDiscover = $false
        $service.AutodiscoverUrl($WindowsEmailAddress)
        Write-host "Autodiscovering Done!" -foregroundcolor $info
        Write-host "EWS URL set to :" $service.Url -foregroundcolor $info

    }
    #To catch the Exceptions generated
    trap [System.Exception] 
    {
        Write-host ("Error: " + $_.Exception.Message) -foregroundcolor $error;
        Add-Content $LogFile ("Error: " + $_.Exception.Message);
        continue;
    }
    CreateFolder($WindowsEmailAddress)
}

To Run the script:
1)Open the Exchange Management Shell
2)Navigate to the location where you have stored the Data and the script file.
3)Type in .\ScriptName.PS1 and hit enter to execute the script