How to stop certain users to send mail externally and allow some user to send externally. Well in my scenario I have 150 users out of which I want only 50 users to send mail externally while all other can only send internal mails?
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How to stop certain users to send mail externally and allow some user to send externally. Well in my scenario I have 150 users out of which I want only 50 users to send mail externally while all other can only send internal mails?