RE: Question regarding spam - address spoofing

  • From: "Mulnick, Al" <Al.Mulnick@xxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Wed, 12 Jan 2005 10:33:35 -0500


-----Original Message-----
From: Dan Vanden Bosch [mailto:dvandenbosch@xxxxxxxxxxxxxx] 
Sent: Wednesday, January 12, 2005 10:37 AM
To: [ExchangeList]
Subject: [exchangelist] Question regarding spam - address spoofing

I have a user who received a spam message. However the user's address wasn't
in the To field. I checked the Internet Message Header and it wasn't there
either. The to field had a user who doesn't exist on our domain.

How would this message have gotten into the user's mailbox?

Would this be an example of a directory harvest attack?

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