[ExchangeList] Re: Drop emails

  • From: <ChongJa@xxxxxxxxxxxxxxxx>
  • To: <exchangelist@xxxxxxxxxxxxx>
  • Date: Fri, 12 May 2006 15:56:58 -0400

Some AV filters will accept all emails for invalid accounts, that way
someone attempting to perform a DHA attack cannot determine valid
accounts. You can enable recipient filtering but this in itself is
susceptible to DHA attacks because the SMTP connection will drop if you
specify an invalid account telling you user does not exist or something
to that effect.


________________________________

From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of John T (Lists)
Sent: Friday, May 12, 2006 3:47 PM
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] Re: Drop emails



But the question that begs to be asked is why do you want to accept
e-mail for invalid accounts in the first place?

 

John T

eServices For You

 

"Seek, and ye shall find!"

 

-----Original Message-----
From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Bruce J. Rose
Sent: Friday, May 12, 2006 10:33 AM
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] Drop emails

 

Is it possible to have the exchange server accept delivery for invalid
accounts and dump them?

 

Thanks Bruce

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