How to Forward Email to Multiple Addresses in ISPConfig3

In ISPConfig3, suppose you have a mailbox called and you want email sent to this address be forwarded to more than one other email addresses such as and, here is what you have to do:

In ISPConfig3, click the Email tab, choose Email Mailbox, and enter user1 to search for the mailbox then press Enter. When the mailbox appear in the result table, click on the email address.

Click the Custom Rules tab, enter the eblow text, and click Save.

if true
    redirect "";
    redirect "";

Now email sent to user1 will be forwarded to both user2 and user3.