I have windows 2000 domain environment, 2 exchange 2003 servers on 2003 boxes, 2 exchange 5.5 on 2000 boxes, one gateway server with GFI mailessential 14 on 2003 box, one domain name, exchange 5.5 about to be retired after last weekend migration from exchg 5.5 to 2k3.
All servers behind the asa 5540 FW, outbound email goes out directly from exchange 5.5 box to the firewall.
The problem is that a lot of good emails going to the badmail folder on the gateway with this error;
Diagnostic-Code: smtp;554 5.6.1 Body type not supported by Remote Host
I got this error when I opened the *.bad file in notepad.
Can you please help me with this, it is been going on for a while and that was one of the reasons why we upgraded exchange.