RE: how to block SMTP Commands without ISA Ser
- From: <oevans@xxxxxxxxxxxxxxx>
- To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
- Date: Wed, 3 Dec 2003 16:13:22 -0500
Again this is one solution to a problem. Did not say everyone will like
it. The bottom line
is just configure the server not to relay and your fine. Normally, if
people want to spam
You with e-mails normally there's little you can do about it. You just
have to
Buy third party solutions to help curb the issues.
-----Original Message-----
From: John Tolmachoff (Lists) [mailto:johnlist@xxxxxxxxxxxxxxxxxxx]
Sent: Wednesday, December 03, 2003 4:01 PM
To: [ExchangeList]
Subject: [exchangelist] RE: how to block SMTP Commands without ISA Ser
http://www.MSExchange.org/
> Look into a firewall solution. Cisco pix uses a feature called fixup
> protocol.
> This prevents other protocols to have a session with your server using
> another protocol Such as telnet and at the same time only allows SMTP
> coming from the outside in.
Extremely bad advice. The Cisco SMTP fixup protocol breaks SMTP
authentication.
John Tolmachoff
Engineer/Consultant/Owner
eServices For You
------------------------------------------------------
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
------------------------------------------------------
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
------------------------------------------------------
Other related posts:
