Important
You can use outbound spam filter policies to control automatic forwarding to external recipients. For more information, see Control automatic external email forwarding in Microsoft 365.
Tip
If you need help with the steps in this topic, consider working with a Microsoft small business specialist. With Business Assist, you and your employees get around-the-clock access to small business specialists as you grow your business, from onboarding to everyday use.
Before you set up email forwarding, note the following:
Allow automatically forwarded messages to be sent to people on the remote domain. See Manage remote domains for details.
Once you set up email forwarding, only new emails sent to the from mailbox will be forwarded.
Email forwarding requires that the from account has a license. If you're setting up email forwarding because the user has left your organization, another option is to convert their mailbox to a shared mailbox. This way several people can access it. However, a shared mailbox cannot exceed 50GB.
You must be an Exchange administrator or Global administrator in Microsoft 365 to do these steps. For more information, see the topic About admin roles.
In the admin center, go to the Users > Active users page.
Select the name of the user whose email you want to forward, then open the properties page.
On the Mail tab, select Manage email forwarding.
On the email forwarding page, select Forward all emails sent to this mailbox, enter the forwarding address, and choose whether you want to keep a copy of forwarded emails. If you don't see this option, make sure a license is assigned to the user account. Select Save changes.
To forward to multiple email addresses, you can ask the user to set up a rule in Outlook to forward to the addresses.
Or, in the admin center, create a distribution group, add the addresses to it, and then set up forwarding to point to the DL using the instructions in this article.
Don't delete the account of the user who's email you're forwarding or remove their license! If you do, email forwarding will stop.