This tip might come in handy when you
want to effectively block all incoming
Internet mail traffic for a specific
user or a specific group.
Note: The original tip was
submitted by Ade Famoti on the excellent
You Had Me At EHLO... official
Exchange blog.
Before the advent of Exchange 2003,
the solution to this question would have
been to give the user or group a false
e-mail address consisting of a
non-resolvable SMTP domain name.
Now, with Exchange Server 2003, you
can block all incoming Internet mail
traffic for a specific user or group by
forcing the user or group to only accept
mail from authenticated users, thus
blocking all (usually) anonymous
Internet traffic.
To block all
incoming Internet mail traffic for a
specific group follow these
steps:
- Click
"Start", point to "Programs", point
to "Administrative Tools", and then
click "Active Directory Users and
Computers".
- Right-click
the distribution group, and then
click "Properties".
-
Click the "Exchange General" tab.
- Under
"Message restrictions", click to
select the "From authenticated users
only" check box.
