[isalist] Configuring ISA Server 2004 to allow email only from Frontbridge servers
- From: "Scheele, Brian" <bscheele@xxxxxxxxxxxxxxx>
- To: <isalist@xxxxxxxxxxxxx>
- Date: Wed, 10 May 2006 11:45:22 -0400
Our MX record for our email domain points to mail.frontbridge.com.
Frontbridge filters the email, then forwards it to our IP address.
I added a network, called Frontbridge to my ISA server with the list of
IP addresses that Frontbridge sends from. All other SMTP traffic should
be blocked since that traffic would bypass Frontbridge.
ISA server now blocks all email that Frontbridge forwards (even if I do
not add the Frontbridge network to any firewall policies). The result
code is
0xc0040014 FWX_E_FWE_SPOOFING_PACKET_DROPPED
I have to delete the network that I created so that email can come in.
Does anyone know what I am doing wrong, or know how to properly set up
ISA Server to allow email to come in from only specific IP addresses?
We have only one external IP address.
Thanks,
Brian Scheele
Systems Administrator
<http://www.clarkfilter.com/Default.aspx>
3649 Hempland Road
Lancaster, PA 17601-1393
Phone (717) 285-8050
Fax (717) 285-8051
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