Unfortunately my domain is getting ton of spam lately. Many of the emails are sent to people that don't even exist within my organization. As a result, I get hundreds and hundreds of NDR emails saturating my outbound queue. I would like to disable NDR's all together, but this post states that I will get black listed:
Is that really the case? Is there something else I can do to avoid this problem? My internet connection is literally dominated by these connections and I am starting to see an effect on my ability to connect to the internet. When I shut down my "Exchange Transport" service, everything goes back to normal. Obviously that is not an acceptable long term solution.
Is there any way I can just explicetly deny emails that aren't addressed to someone in my AD?
Thanks in advance.