email@example.com Posted October 18, 2006 Share Posted October 18, 2006 > Hello, > > I have a client who is being just pounded by > bounced messages. They seem to originate from sites called orange > and wanadoo with various extensions like com, nl, fr, etc. They > send out spam that is spoofed as one of my users and the receiving end > bounces the message back to my servers. They do this en mass. > > What happens is that this orange.com and wanadoo.com, who appear to be > somehow connected to each other, send out a bunch of spam to all over, and they > get bounced back to my server as it appears that they were from > one of my legit users. The quantity is nearly bringing my server > to its knees. In addition, it could be spoofed to any name at my domain, and > my servers still have to enum it to know that the user may or may not exist. > > I am not sure if this is new or if this has been going on for some time. This attack, as > I would call it, doesn't seem to be letting off. I was wondering if anybody has any > idea of how to combat it? > > Thanks and have a great day, > > Troy Link to comment Share on other sites More sharing options...
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