RE: Exchange Relay

  • From: "John Tolmachoff \(Lists\)" <johnlist@xxxxxxxxxxxxxxxxxxx>
  • To: "'[ExchangeList]'" <exchangelist@xxxxxxxxxxxxx>
  • Date: Thu, 27 Nov 2003 08:36:38 -0800

How could the SMTP Message Screener and a SMTP SPAM gateway reside on ISA
together?

 

John Tolmachoff

Engineer/Consultant/Owner

eServices For You

 

-----Original Message-----
From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxxxxxxxxx] 
Sent: Thursday, November 27, 2003 8:24 AM
To: [ExchangeList]
Subject: [exchangelist] RE: Exchange Relay

 

http://www.MSExchange.org/

Morning John,

 

Looks like you're enjoying a nice workaholiday too :-)

 

Happy Thanksgiving!

 

Tom

 

ISA/Exchange TIP: if you're cash strapped, put your spam filtering relay on
the ISA firewall itself. The SMTP Message Screener can provide a front end
SMTP solution to offload processing from your back end spam whacking app to
provide "defense in depth" against criminal spammers.

 

  _____  

From: John Tolmachoff (Lists) [mailto:johnlist@xxxxxxxxxxxxxxxxxxx] 
Sent: Thursday, November 27, 2003 10:13 AM
To: [ExchangeList]
Subject: [exchangelist] RE: Exchange Relay

http://www.MSExchange.org/

Taking advantage via poor password policy.

 

Morning Doctor.

 

John Tolmachoff

Engineer/Consultant/Owner

eServices For You

 

-----Original Message-----
From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxxxxxxxxx] 
Sent: Thursday, November 27, 2003 7:47 AM
To: [ExchangeList]
Subject: [exchangelist] RE: Exchange Relay

 

http://www.MSExchange.org/

Hi Thomas,

 

Firewalls can't prevent relay. You need to configure the Exchange Server
correct to prevent relay from all users (I used to recommend allowing relay
from authenticated users, but criminal spammers are now having success at
taking advantage of that configuration).

 

HTH,

Tom

www.isaserver.org/shinder

 

 

  _____  

From: Kamire, Thomas [mailto:Thomas.Kamire@xxxxxxxxxxxxxxxxx] 
Sent: Thursday, November 27, 2003 6:45 AM
To: [ExchangeList]
Subject: [exchangelist] Exchange Relay

http://www.MSExchange.org/

I am having Exchange 5.5 behind a firewall. Is there any problem if I do not
close the relay? The configuration of the PIX 515E Firewall is very well
done. Can someone advise.

 

 

Regards


Thomas E. Kamire
Systems Engineer
Kenya Airways Ltd,
P.O. BOX 41010 Nairobi, Kenya 
Tel: +254+2+32072311
Cell: +254 722 483 253 
 <mailto:thomas.kamire@xxxxxxxxxxxxxxxxx> thomas.kamire@xxxxxxxxxxxxxxxxx

"Lets Make Things Better - Together"

 <http://www.kenya-airways.com/> 

 

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Network Security Library: http://www.secinf.net/
Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com
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List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist
Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp
Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ
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Other Internet Software Marketing Sites:
Leading Network Software Directory: http://www.serverfiles.com
No.1 ISA Server Resource Site: http://www.isaserver.org
Windows Security Resource Site: http://www.windowsecurity.com/
Network Security Library: http://www.secinf.net/
Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com
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List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist
Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp
Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ
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Other Internet Software Marketing Sites:
Leading Network Software Directory: http://www.serverfiles.com
No.1 ISA Server Resource Site: http://www.isaserver.org
Windows Security Resource Site: http://www.windowsecurity.com/
Network Security Library: http://www.secinf.net/
Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com
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