Help with our Exchange & TMG Setup - No External Mail!

[pritchardavid]

Damn that's goanna be one nasty job, everything thing is set on 10.146.* range

 

Is it worth a try using Exchange Edge with TMG?

[sukh]

If you want the added benefits of an Edge.

[SYNACK]

If it's in a VM environment you may be able to use untangle or something to NAT the traffic from the LEA IP to a 172 address then into the external Interface of the ISA. Convoluded but it should trick it into working.