A mailing list provides the feature of sending email from one to many.
To add a mailing list::
After you add a mailing list (Figure 3.30), you have to configure:
Internal Users List set the members of IPBrick Users that will be part of the distribution list;
External Users List (Figure 3.31), set the email addresses that don't belong to the network (Internet);
Modify to add members to the list.
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