Hello Guys,

I want to restrict all users of zimbra to send emails to other domains like gmail hotmail etc. But they can communicate into local domain. I've used configuration provided in below link but it didn't work. Please help me.

RestrictPostfixSenders - Zimbra :: Wiki

I am using zimbra version : Release 7.1.0_GA_3140.UBUNTU10_64 UBUNTU10_64 NETWORK edition.