Is it posible to restrict access to a list to a certain ip network?
We have several lists, but a few of them are only allowed to be sent to from
certain areas. The problem is the email alias can vary. We don't mind about
that, just as long as they come from our internal ip network.
We are a dormitory and people have there own email addresses, and we do not
know them all, but they should all have access to send to this list as long
as they are sending from the local network. Other lists are to be available
for people even though they are not in the local network. Is this possible?