Create Distribution Group in Exchange 2010 / 2007
Open Exchange Management Console And Recipient Configuration And Exchange 2007 is Recipient Organization
Distribution Groups Select either “New Distribution Group“
create new on if you want you can select “Existing group” and browse
your active directory for a group you would like to add an email addresses for Next
create a mail enabled security group here but we are going to stick
with a simple distribution group Give the group a name and an email alias Next
You can also specify which OU you want to create the group in here
Right click your new group Properties
Members Add in as appropriate
Distribution Group to Accept Mail from EXTERNAL Addresses
Distribution group cannot accept mail from outside your organisation to change that
Select the “Mail Flow Settings”
Tab Double click “Message Delivery Restrictions”
“UNTICK “Require that all senders are authenticated” OK Apply
Finish:-):-):-)