RE: a little suggestion
- From: "Periyasamy, Raj" <Raj.Periyasamy@xxxxxxxxxxxx>
- To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
- Date: Wed, 25 May 2005 13:31:09 -0400
Hi Raman,
You have 2 options,
1) You can enable the "Filter Recipients who are not in the active
directory" option in the Message delivery properties of the Exchange
organization. This is easier, but NOT RECOMMENDED. Because, this will
send a response back to the spammer about invalid user ID during the
SMTP handshake. So, the spammers can harvest email IDs.
2) Get an antispam software such as GFI Mailessentials that can do
Directory Harvest filtering. I would recommend this, because in this
case the spam filter masks the invalid recipients, and does not send
response back to the spammer about invalid recipient.
HTH.
Regards,
Raj Periyasamy
Systems Administrator
MCSE(Messaging), CCNA
-----Original Message-----
From: Raman [mailto:goswamiraman@xxxxxxxxxxxxxx]
Sent: Wednesday, May 25, 2005 3:38 AM
To: [ExchangeList]
Subject: [exchangelist] a little suggestion
http://www.MSExchange.org/
dear all,
i have a littile problem,
i have two domains registered with a single ip e,g
sol.com at 61.1.1.9
rol.com at 61.1.1.9
so i recieve mails for both domains on my exchange
Now what the problem is sol.com
somebody is trying to spoof addresses on that domain like e.g
i get mails send to recpt ram@xxxxxxx, kam@xxxxxxx, def@xxxxxxx who do
not
exist in my domain so non delivery mails are generated and get stuck in
queue because destination to non delivery reports do not exsist and
everytime these fake mails are from different ip address and domains.so
it
is hard to put senders filter. i am using gfi mail scanner and if try to
enable any kind of anylysis or ratings then corporate mails also get
undelivered.
i am using exchange 2003
or i think if there is any method to stop non delivery reports
for particular sol.com.
2. another question : how can i stop delivery reports for internal mails
please suggest
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