OT: Strange behavior from selfsending mail viruses?

[Pete]

Anders Andersson, IT wrote:

>Hi
>Either Im totally wrong or just missed this information if its been
>discussed before.
>Ive had my primary MX server down for almost 2 weeks and I noticed that the
>viruses coming in has gone down with at least 80%. The only reason I can see
>is that selfsending viruses only try to deliver their contaminated mail to
>the primary MX record and not the second MX.
>Has anybody seen this as well or have I just been lucky the last 2 weeks
>
>/Anders
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Nope, my second MX machine almost gets no legit mail and only spam or
viruses.