One thing that was brought up is that NDR's can be used to relay (the
spammer uses NDR's to forward the message content by using the mail
from: email (at) address (dot) com [email concealed]) I think that we will be seeing more of this
type of relaying going on- it sends a message back to the address in the
from block.
Anyone setup a double SMTP setup in there network? Ie. exchange only
receives messages from the 2nd SMTP that is out on the net and the 2nd
server relays the message internally from the outside?
------------------------------------------------------------------------
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Network with over 10,000 of the brightest minds in information security
at the largest, most highly-anticipated industry event of the year.
Don't miss RSA Conference 2004! Choose from over 200 class sessions and
see demos from more than 250 industry vendors. If your job touches
security, you need to be here. Learn more or register at
http://www.securityfocus.com/sponsor/RSA_focus-ms_031027
and use priority code SF4.
------------------------------------------------------------------------
---
One thing that was brought up is that NDR's can be used to relay (the
spammer uses NDR's to forward the message content by using the mail
from: email (at) address (dot) com [email concealed]) I think that we will be seeing more of this
type of relaying going on- it sends a message back to the address in the
from block.
Anyone setup a double SMTP setup in there network? Ie. exchange only
receives messages from the 2nd SMTP that is out on the net and the 2nd
server relays the message internally from the outside?
------------------------------------------------------------------------
---
Network with over 10,000 of the brightest minds in information security
at the largest, most highly-anticipated industry event of the year.
Don't miss RSA Conference 2004! Choose from over 200 class sessions and
see demos from more than 250 industry vendors. If your job touches
security, you need to be here. Learn more or register at
http://www.securityfocus.com/sponsor/RSA_focus-ms_031027
and use priority code SF4.
------------------------------------------------------------------------
---
[ reply ]