Set forwarding address for everyone.

office-365-logo

Short but useful script to set forwarding email address for every user in your Office 365 tenant. Can be useful for example if a company have been acquired, and the new owners want them to use theire email domain. Forwarding can then be a good temporary/quick fix to catching all emails to the old domain.

$Mailboxes = Get-Mailbox | Select-Object identity,alias
Foreach($Mailbox in $Mailboxes) {
    $MailAlias = $Mailbox.alias
    Set-Mailbox -identity $Mailbox.identity -ForwardingSMTPAdress $MailAlias+"@contoso.com"
}

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