RE: Exchange 2003 / ISA 2004 - Outbound Email
- From: "Paul Crisp" <pcrisp@xxxxxxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 5 May 2005 20:53:23 +0100
Ha ha, already pre-empted that one Jim.
I have added the ExchBE to the Custom Connection limit which is set to 1000000
Paul Crisp
Snr Network Support Analyst
----- Original Message -----
From: Jim Harrison
To: [ISAserver.org Discussion List]
Sent: Thursday, May 05, 2005 8:52 PM
Subject: [isalist] RE: Exchange 2003 / ISA 2004 - Outbound Email
http://www.ISAserver.org
Check your ISA alerts and Application event logs.
I'll bet that you find "connection limit exceeded" and the IP of your ExchBE
listed.
2000 emails in a single shot will create a buttload (technical term) of
traffic through the ISA.
-------------------------------------------------------
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://isaserver.org/Jim_Harrison/
http://isatools.org
Read the help / books / articles!
-------------------------------------------------------
------------------------------------------------------------------------------
From: Paul Crisp [mailto:pcrisp@xxxxxxxxxxxxxxxxx]
Sent: Thursday, May 05, 2005 12:10
To: [ISAserver.org Discussion List]
Subject: [isalist] Exchange 2003 / ISA 2004 - Outbound Email
http://www.ISAserver.org
Hi all
Ok done some reading on this and managed to get my Exchange 2003 BE server
sending outbound emails with out a problem. I also done a telnet test to port
25 and confirmed I was going via the firewall.
After about 5mins of working we have some daily email services that go out,
sends around a 2000 email shot to some of our customers. During this point, it
seemed as though the Exchange server would no longer send emails, they just
kept queuing up. I tried a telnet test again to an IP address (another site we
have) and this failed as well.
I have read through the Microsoft paper online for the Exchange Deployment
kit and I have a setup as follows:
We have DNS internally for AD only, so primary and secondary DNS servers on
the Exchange box are pointing to our internal servers
Exchange default gateway is pointing to the ISA box internal IP address
I have configured the Exchange SMTP Virtual Server to use our external ISP
DNS Servers
I have configured two firewall policies on the ISA box
1 - SMTP Exchange->Internet
Allow SMTP Exchange Server (Computer IP Address)
External All Users
2 - SMTP Exchange->External DNS
Allow DNS Exchange Server(Computer IP Address)
ISP Primary/ISP Secondary(Computer IP Address) All Users
Can anyone give me any clues where to look to try and solve this problem?
Regards
Paul Crisp
Snr Network Support Analyst
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