This is hopefully a fairly simple question... In Microsoft Exchange, you can set up Distribution Groups. These are email addresses that do not have a mailbox attached to them, but instead contain pointers to several mailboxes. In my mail client, I could send an email to firstname.lastname@example.org and email would automatically be routed to email@example.com, firstname.lastname@example.org, and email@example.com. Is there any kind of built-in functionality for this in the xenForo messenger or should I turn to plugins for this?