gistfile1.ps1

## Get all mailbox email addresses and output to csv

$mbx = Get-Mailbox -ResultSize Unlimited | Select DisplayName, EmailAddresses

$foreach = Foreach($mailbox in $mbx) {
    New-Object PSObject -Property @{
        DisplayName = $mailbox.DisplayName
        EmailAddresses = [String]$mailbox.EmailAddresses
    }
}

$foreach | Select DisplayName, EmailAddresses | Export-Csv -Path C:\Scripts\mbx-email-addresses.csv