Re: Exchange/Microsoft SMTP Authenticated User spam?

[Mike Lewinski <mike () rockynet com>]

wirepair wrote:

> We've had two calls in the past month regarding supposed authenticated 
> users sending out spam and using their external mail servers as 
> relays. I was just curious if anyone else has seen this type of activity. 


We have been seeing a lot of SMTP AUTH abuse, not just on Exchange but 
on any platforms that support it. The perpetrator(s) appear to be going 
after well known accounts with weak passwords (i.e. webmaster / webmaster).

See also:

http://www.merit.edu/mail.archives/nanog/msg15353.html
http://groups.google.com/groups?selm=3F869683.3000303%40blackehlo.cluestick.org




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