Hi all, I have a problem that I was wondering if you could help with. I'm running a single NT/2000 domain behind an ISA firewall on 2000 and Exchange 5.5 on NT. Through ISA I have email forwarded to a separate box running 2000 SMTP with IIS 5.0 for email screening. It is a feature with ISA that allows you to screen email to block certain attachments, or keywords, or from certain domains, etc. The 2000 box then forwards on the email to my Exchange box and from there to my users running Outlook 2000. The problem I'm having is that several emails a day to several different users are not getting through form the outside, and come back with this error 'Diagnostic-Code: smtp;554 5.6.1 Body type not supported by Remote Host'. Also in the Badmail queue on the 2000 box I get the following error 'This is a MIME-formatted message. Portions of this message may be unreadable without a MIME-capable mail program.' The problem stops if I don't relay through the 2000 SMTP server, so I don't think the problem is with Exchange or my Outlook clients.
I can't find anything in the Knowledge Base, but in my research I did find from another list where someone was receiving the same error messages though a similar set-up in which he had a 2000 SMTP (IIS 5.0) server set up to relay email from a DMZ into a NT box running Exchange 5.5 (IIS 4.0). I didn't see where he ever found a resolution though. This would lead me to believe that my problem is not directly caused by the ISA server. Does anyone have any ideas? Does anyone have a similar setup that runs successfully, or is there just compatibility issues with 2000 SMTP on IIS 5.0 to NT Exchange 5.5 on IIS 4.0? Doug Eubank (615)244-5555 ext. 237 [EMAIL PROTECTED] ########################################### This message has been scanned by F-Secure Anti-Virus for Microsoft Exchange. For more information, connect to http://www.F-Secure.com/ List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm
