I'm not sure how a firewall could help in this instance (if someone
can enlighten me
you would have my gratitude). As SMTP needs to be opened to the world in
order for
imail to receive mail, a firewall has simply to allow it (I think) or
there is no mail, and that's that.
or less.
Maybe he meant a gateway? For Imail to be safe from this its smtp service
cannot be open to the internet unless you are running 2006.1, there must be
something else answering the smtp connections from the world (internet).
That something should also be doing recipient validation and block relaying
at the very least. That way this exploit would never reach Imail to
compromise it. Then you only have to worry about your gateway being
compromised, lol.
Doug Traylor
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