QQ.com domain SPAM
Our OSvC instance has been inundated with SPAM originating from the qq.com domain. We've had 2,000 unique spam senders with this domain come through in the last 36 hours. They all have the same Chinese text in the subject and no content.
Is there any way to block an entire domain via Barracuda? I have only found an option to block individual email addresses, which does not help in this case. I know Barracuda is scoring these items, but they all get less than 2.0 on their spam algorithm, so we can't really use the filter to block it.
I am also curious if anyone else deals with spam from this domain or not.