If you want to forward email to an external address in Office 365 there are several ways to do this.
This page has some good documentation about how the various ways to achieve this:
One of the nice things about doing this with Outlook Web App is that there is no need to create a new mail contact within your organisation or 365 account.
Using the standard web based Office 365 admin tools it does not seem possible to forward email for a user to an external address without creating a new mail contact, which in some cases is not ideal.
But, you can do this with Powershell quite easily and the link above provides some information on how to do this. This is the method that this blog post expands on.
We are going to be using the Set-Mailbox cmdlet once again to create the forwarding for us.
Use powershell to forward email to an external address
Simply fill in the fields below and the correct Powershell code will be created for you. You also need to decide if you would like the mail delivered only to the forwarding address or to both the forwarding address and the original mailbox. This is what the DeliverToMailboxAndForward parameter is used for.E-Mail identity of mailbox to forward(e.g. [email protected]):
E-Mail address to forward mail to?(e.g. [email protected]):
Which mailboxes should the mail be delivered to?:
If you want to disable the forward in the future simply enter $null as the address that you would like to forward to and the forwarding will be cancelled.