Sobig Traffic

["Barros, Jacob" <jkbarros () GRACE EDU>]

Our exchange server is still getting hit with email messages containing
the Sobig.f virus. The viruses is being deleted but we're losing system
resources in the process.  Do any of you know if there is a way that I
can filter/block those messages before it hits the exchange server? Can
it even be done or should we just ride out the storm.  Am I on the wrong
track in thinking that this bug is on the outside and in fact may be
resident on one of our internal machines?  

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