RE: Error from yahoo: wasn't able to establish an SMTP connection. (#4.4.1)

  • From: "John Tolmachoff \(Lists\)" <johnlist@xxxxxxxxxxxxxxxxxxx>
  • To: "'[ExchangeList]'" <exchangelist@xxxxxxxxxxxxx>
  • Date: Wed, 7 Apr 2004 08:04:29 -0700

Oh brother. You do not know what you are doing, do you?


1. If you are using the included Internet Connection Firewall that comes
with Windows XP and Windows 2003 server, you do not understand. You CAN NOT
USE THAT! That is a basic basic basic dumb firewall that is only a stop gap

2. Generally speaking, (unless you purchased the cheap version,) ISA 2000 is
included with Small Buisness Server 2003.

3. You are using a Linksys (what, DSL,) basic router that is not a firewall.


Some one needs to take some time and think about security.


Operating an Exchange e-mail server, or any flavor of e-mail server on the
Internet, REQUIRES dedication and understanding of the ramifications of
doing so. This includes taking basic standard security steps at the very


For the Exchange server on SBS, disable the ICF and configure ISA server and
publish the Exchange server properly.

On the other client behind the Linksys, 86 the Linksys router, break down
and get a SonicWall TZ170 and configure the SMTP and POP3 protocols.


John Tolmachoff


eServices For You


-----Original Message-----
From: Mark M. Friedman [mailto:mark@xxxxxxxxxxxxxxxx] 
Sent: Wednesday, April 07, 2004 1:23 AM
To: [ExchangeList]
Subject: [exchangelist] RE: Error from yahoo: wasn't able to establish an
SMTP connection. (#4.4.1)

One is Win2k3 small biz srvr (Not ISA) built in firewall and the other
client has a basic linksys setup.




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