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Email forwarding in Powershell
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The reason a MailContact is generally used for forwarding purposes in Exchange is because you can't set forwarding on a mailbox on the server level to a domain that isn't configured as an Accepted Domain. &nbsp;How many different external addresses are you forwarding to? &nbsp;<br />
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Here is an example of the one-liner you can run to configure forwarding:<br />
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<pre><code class="code-1 nolinks" id="code-20-41436032-1"><span>Set-Mailbox &lt;mailbox&gt; -ForwardingAddress user@externaldomain.com -DeliverToMailboxAndForward $false</span>
</code></pre>
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Can you give more detail, what exactly you are looking. Are you trying to forward specific email or all emails. Did you enable forward option at org level?
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Potentially there are around 700 mailboxes that I need to forward to an External (not accepted) domain.<br />
I can generate .csv file with a list of all the forwarding (target) email addresses but this will be done in stages and would require several .csv files. I hope that answers your question.<br />
Thank you.
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Hello Jason,<br />
<br />
Just tested a script that you provided and it only works if I have an existing &quot;Mail Contact&quot; in place, without &nbsp;Contact it doesn't work for me.<br />
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Thanks.
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csv.PNG

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Thank you for your reply. Once forwarding is setup, what's the command to stop forwarding if I need.
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Just remove forwarding address.<br />
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Import-Csv C:\users.csv | ForEach{Set-Mailbox $_.alias -ForwardingSMTPAddress $null}
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<div class="content wysiwyg-content">
Hello,<br />
I need to forward several mailbox in Exchange 2010 to &nbsp;external &nbsp;mailboxes and looking for a reliable script rather then configuring mail &quot;Contact&quot; and then forwarding. I will have several hundred mailboxes to forward soon.<br />
<br />
Thank you in advance,<br />
<br />
Sig
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Hello,
I need to forward several mailbox in Exchange 2010 to  external  mailboxes and looking for a reliable script rather then configuring mail "Contact" and then forwarding. I will have several hundred mailboxes to forward soon.

Thank you in advance,

Sig

forward Exchange 2010 mailbox to an external mailbox in Power Shell

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