Exchange: Add Email Aliases

Add-BulkEmailAlias.ps1

function Add-BulkEmailAlias
{
    <#
        .Synopsis
            This function will create the desired email aliases for the specified mailbox
            
        .Example
            C:\PS>Add-BulkEmailAlias -PrimaryEmailAddress your.mailbox@mydomain.com -AliasPrefix testAlias –Domain @mydomain.com -NumberOfAlias 1000

            This example will create 1000 emails addressess called testAlias1@mydomain.com > testAlias1000@mydomain.com 
            and attaches them to the primary mailbox your.mailbox@mydomain.com
        .Notes
            Name: Add-BulkEmailAlias
            Author: Petro Margaritis
            Last Edit: 06/01/2015
            Keywords: Mailbox, Email Alias, Exchange 2010, Add
        .Link
            http://www.iampetro.com/
    #>
    Param (
           [parameter(Mandatory=$true)][string]$PrimaryEmailAddress,
           [parameter(Mandatory=$true)][string]$AliasPrefix,
           [parameter(Mandatory=$true)][string]$Domain,
           [parameter(Mandatory=$true)][int]$NumberOfAlias
           )   
    try
    {
        for ($i=1; $i -le $NumberOfAlias; $i++)
        {
            $aliasName = $AliasPrefix + $i + $Domain
            Set-Mailbox $PrimaryEmailAddress -EmailAddresses @{Add=$aliasName}
            Write-Host "The alias: "$aliasName", has been added to the account: "$PrimaryEmailAddress -foregroundcolor Yellow
        }
        Write-Host "All Aliases have now been added" -foregroundcolor Green
    }
    catch [System.Exception]
    {
        # Display error captured
        Write-Host "Error caught " -foregroundcolor Red
        Write-host $error[0] -foregroundcolor Red
    }
}