Securing a distribution group so that it can only receive email from a known collection of users

A customer asked me the other day if it is possible in Outlook Live to create a Distribution Group that is only able to receive emails from their students that are on Outlook Live, and Staff members that are on a separate email solution.

This is entirely possible using just the basic settings that are available in the Exchange Control Panel User Interface.  See the demo:

http://silverlight.services.live.com/invoke/71782/SecuringDGs/iframe.html

Download

In the demo, I configured the permissions in the GUI, but you could also achieve the same end result using PowerShell.

set-DistributionGroup "AllContoso" -AcceptMessagesOnlyFromDLMembers "Permitted"
Set-DynamicDistributionGroup "AllContoso"-RequireSenderAuthenticationEnabled $false

Enjoy!

Jonny

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One Response to Securing a distribution group so that it can only receive email from a known collection of users

  1. Brien says:

    Outlook Live R3 is obviously a beta product; I stumble across problems each time I use Mail. However, this GUI for admin of groups is incredibly powerful and yet incredibly simple to use. If you\’re going to finish off the beta with this kind of functionality in other areas, wow! Whoever did this piece of the program deserves recognition. We\’re in the evaluation stage and I blogged on this GUI for the other committee members. It really helps "sell" the product.

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