RE: SMTP Relay - RFC822 Body type not supported by Remote Host

  • From: "Daniel Schell \(GFi AP\)" <Daniel.Schell@xxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>, <dfeital@xxxxxxxxxxxxx>
  • Date: Wed, 20 Nov 2002 14:57:58 +1030


"By default, the IIS SMTP service advertises 8BITMIME and allows MIME messages 
to be relayed. However, Microsoft Exchange Server versions 4.0, 5.0, and 5.5 
are not able to handle 8-bit MIME messages.

To stop the Microsoft Windows 2000 SMTP service from advertising 8BITMIME, 
please refer to the following Microsoft Knowledge base article:;en-us;Q262168.";

Daniel Schell - GFI Asia Pacific
Security & Messaging software for Windows 2000
GFI: MailSecurity - FAXmaker - DownloadSecurity for ISA Server - LANguard
Security Event Log Monitor 

-----Original Message-----
From: Dêniz Feital (Chiptek) [mailto:dfeital@xxxxxxxxxxxxx]
Sent: Wednesday, 20 November 2002 6:42 AM
To: [ExchangeList]
Subject: [exchangelist] SMTP Relay - RFC822 Body type not supported by
Remote Host

Hello all

We have just installed a smtp relay server with IIS 5.0 W2K Server. We used
to have a IMC connector to the Internet. Now the smtp delivers to this IMC
and then to our site.

Few users outside our company are complaining that they can send us

The error the users are getting follows:

Final-Recipient: rfc822; xxxxx@xxxxxxxxxxx <mailto:xxxxx@xxxxxxxxxxx>  
Action: failed
Status: 5.6.1
Diagnostic-Code: smtp;554 5.6.1 Body type not supported by Remote Host

I think this is a silly issue. But I couldn't find anything on smtp relay,
because it does not have too many options to configure.

If you can help me, I d really appreciate it.

Best Regards,

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