List email addresses belonging to exchange user list

Get-ExchangeEmailAddresses.ps1

Function Get-EmailAddresses
{
	Param(
	[Parameter(Mandatory=$true)]
	$Identity)
	
	$mailbox = Get-Mailbox $Identity
	$aliases = @()
	$addresses =  $mailbox.EmailAddresses | % { $_.addressString }
	
        # (Optional - filter out your default domain alias)
	foreach ($address in $addresses)
	{
		if ($address -notmatch "contoso.com")
		{
			$aliases += $address
		}
	}
	
	return $aliases
}

$users = @(<#Add list of users here, note that you need to use their samaccountname, dn or userprincipalname#>)

foreach ($user in $users)
{
	$userName = (Get-QADUser $user).DisplayName
	Write-Host $userName
	$listEmails = Get-EmailAddresses -Identity $user
	foreach ($emailAddress in $listEmails)
	{
		Write-Host $emailAddress
	}
	Write-Host ""
}