Exchange 5.5 MTABindBack over RPC failures
- From: "Bunting, Jeff" <BUNTING@xxxxxxxxxxxx>
- To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
- Date: Mon, 16 Jan 2006 10:30:22 -0500
I'm having some problems with message transfer from my Exchange 2003 server
(ISA 2004 secureNAT client) to Exchange 5.5 server in branch offices.
I'm getting MTABindBack errors to one server, and looking through the ISA
logs, it is showing the bindback as "unidentified IP traffic". The intial
connection is shown as RPC.
I have a second server that I successfully sent mail to this morning (at the
same time the first one wasn't working properly) which is now failing with
the same problem. I have not changed the ISA configuration today. I swear.
The only thing I did today was to restart the MTA services on Exchange to
see if that was a problem.
the ISA rule I have is to allow Exchange RPC Server, RPC (alll interfaces),
RPC Server(allinterfaces) from Internal to Internal.
It just looks to me that ISA isn't seeing the bindback as RPC traffic and
thus denying it. Do I need to modify this some way?
Jeff
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