Please advise how to config ironport for this solution

[support]

Hi

     I need to setting the config on ironport mail gateway to do as below.

1. Allow some user to send mail to specific domain only.
   Ex. term@acagroup.com can send email only to "term@hotmail.com", "term@gmail.com", "term@yahoo.com"

2. If term@acagroup.com send a message to multiple recipients then message will send to only allow recipient.

   Ex.
From : term@acagroup.com
To : term@acagroup.com, term@ironport.com , term@yahoo.com , term@test.com
Subject : test
Body : This is a test mail.

The result is message must successful send to only term@acagroup.com and term@yahoo.com

Please advise. Thank you very much.

[jmonrad]

There is probably other ways to archive this, but the solution below is something I have tested, which works.

If you create a new custom public listener on a new virtual gateway, where you can then add a new RAT. In here you can specify which e-mail addresses and or domains that is allowed.

you can then use the new IP interface to deliver e-mail. Since you are using RAT now, the IronPort will only accept

recipients that are in the RAT.