[ale] Being used in a DOS attack against others

[jb]

How much of a flood did this create, out of curiosity?  

John


On Thu, 2002-08-08 at 09:48, Michael Hirsch wrote:
> Someone has been using our mail server to amplify a DOS attack against
> some other mail servers.  It works like this.  Then send a mail to
> randomuser at nubridges.com with a return address of attackedcompany.com. 
> Since random user does not exist we send a reply that the user does not
> exit to attackedcompany's mail server.  So we flood their mail server.
> 
> I've never seen this attack before, though it seems quite simiple.  Is
> this a well know DOS attack?  Has anyone else been experiencing this? 
> 
> It seems to have stopped this morning, but it was ongoing for the last
> two days.
> 
> --Michael
> 
> 
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