[ExchangeList] Re: SMTP - Blocking messages where the the recipient does not exist in the GAL.

  • From: "Crockett, Gregory" <Gregory.Crockett@xxxxxxxxx>
  • To: <exchangelist@xxxxxxxxxxxxx>
  • Date: Sat, 17 Jun 2006 23:43:09 -0500

My bad.  Version 2003.  I thought of the recipient filter.  However, how
does this filter work if the Exchange server is not facing the Internet?
I will look into GFI Mail Essentials?  Thanx for the tar pit info?

 

greg

 

________________________________

From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Simon Butler
Sent: Saturday, June 17, 2006 3:13 PM
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] Re: SMTP - Blocking messages where the the
recipient does not exist in the GAL.

 

Which version of Exchange?

If Exchange 2003 on Windows 2003 then you can do recipient filtering.
You need to enable tar pit as well.
http://www.amset.info/exchange/filter-unknown.asp

For other versions or where Exchange is not your primary receiver of
SMTP traffic then you need to use a product that has LDAP lookup. I
believe GFI Mail essentials does, as does Vamsoft ORF, there will be
others. 

 

Simon.

 

--
Simon Butler
MCP, MCSA, MVP:Exchange
Amset IT Solutions Ltd.

e: simon@xxxxxxxxxxxx
w: www.amset-it.com
w: www.amset.info 

 

________________________________

From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Crockett,
Gregory
Sent: 17 June 2006 18:26
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] SMTP - Blocking messages where the the recipient
does not exist in the GAL.

Is there anyway to accomplish the above at the firewall - we are using
ISA?  We are receiving ton of messages with anything left of the @.

 

Some of the recipients:

jkyxpzbjzqkli@xxxxxxxxx

lggxxtpghdx@xxxxxxxxx

jxbhwutklun@xxxxxxxxx

 

 

Is there a way to extend Recipient Filtering to the firewall?

 

TIA

 

greg

 

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