Question : Exch 2007 Distribution Group not receiving any mail

Experts,

As usual - I need some help.

I have a "Distribution Group" in Exchange 2007 that's not receiving E-mail, from both internal messages and external ones.  Here's the basic configuration of how it's set up in my AD / Exchange:

NetAdmin <-- Universal Security Group  *This is the Distribution Group I created in Exchange.  It contains 3 nested groups, NetAdmin_SiteName.

NetAdmin_SiteName 1 - 3 <-- Universal Security Groups *These are simply the AD group that contains the members I wish to be able to receive the mails.



Whatever I do, I can't get any users to receive the E-mails I send to the distro group.  On the distro group itself, I have unchecked "Require that all senders are authenticated" - so I can send from outside the domain once it's working.

Would anybody be able to point me in the right direction on something I'm missing...  Thanks.

Answer : Exch 2007 Distribution Group not receiving any mail

Are the nested groups email enabled? You may need to  uncheck "Require that all senders are authenticated" on the nested groups also. Also, are all of the users in the groups email enabled? You could try just having one test user in the group and make sure it works. Then, add the nested groups one-by-one and make sure they each cooperate.