Transport Rules to Restrict Users from Sending / receiving Email to all Recipients except to one DL

Hi All,

I am trying to use transport rules to restrict users from sending email to all recipients except to members of one DL. All other  emails to recipients who are outside of this DL both incoming and outgoing should be blocked.

Need advice.

Thanks in advance.

July 28th, 2015 5:03am

Hi,

Transport rule like this.

Best Regards.

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July 28th, 2015 9:14pm

Hi Alfogeek,

I'm quite curious why would you need a rule as this.

A,B,C,D users having mailbox can't send any email to each other unless they are member of AllowEmailGroup.

Normally we would have rule which would block if member of block group, and normal email should flow. Having rules like this might give rise to unknown issues.

You can update the rule given by Lynn to :

*Apply this rule if...

["Apply to all messages"]

July 29th, 2015 2:04am

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