Hi!
We have some strong spam attacks done by combination of our webmail, viruses
and open proxies.
Situation is like this:
Our outgoing SMTP server is open only for users from our IP addresses and is
filtered for rest of the world. Our webmail interface is open to whole world
as our users need to access it from anywhere (of course they have to log in
first).
Count! MAke some scripts on your outbound SMTP and do per user (e-mail)
thresholds. So if you have a exploited account the damage is minimal.
Bye,
Raymond.
