On 03.07.2015 11:58, Sujit Acharyya-choudhury wrote:
> We have seen recently two DoS attacks on our mail gateways, but the machines
> and Exim coped well. Our network administrator suggested to block ping, but
> from my previous experience elsewhere it cause some problem - I cannot
> recall exactly what. Any thoughts on this. I know it is Out of Topic.
You mentioned that you suspected DOS attack on your mail gateway
previously but never provided any details. I suspected some major
misconfiguration on your side, like running an open relay or a policy of
accept-then-bounce, which would be very serious issues that have to be
solved.
I you don't want to disclose any details on this list, you should
consider hiring external consulting.
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