Route Email based on Recipient Email Address - Server Mode

Hi,

we have configured Server Mode in Fortimail. We have domain example1.com and there are 3 local users in FortiMail:

- user1@example1.com

- user2@example1.com

- user3@example1.com

If there is email with recipient to user4@example1.com, we want the email is routed to the other POP server (not in local server mode). Is it possible to achieve that scenario?

Thank you