Hi, "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: http://support.microsoft.com/default.aspx?scid=kb;en-us;Q262168."; Regards, Daniel Schell - GFI Asia Pacific Security & Messaging software for Windows 2000 GFI: MailSecurity - FAXmaker - DownloadSecurity for ISA Server - LANguard Security Event Log Monitor www.gfi.com -----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 http://www.MSExchange.org/ 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 messages. 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, ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: daniel.schell@xxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') This mail was content checked for malicious code and viruses by GFI MailSecurity. GFI MailSecurity provides email content checking, exploit detection and anti-virus for Exchange & SMTP servers. Spam, viruses, dangerous attachments and offensive content are removed automatically. Key features include: Multiple virus engines; Email content & attachment checking; Exploit shield - email intrusion detection & defence; Email threats engine - analyses & defuses HTML scripts, .exe files & more. In addition to GFI MailSecurity, GFI also produces the GFI FAXmaker fax server & GFI LANguard network security product ranges. For more information on our products, please visit http://www.gfi.com. This disclaimer was sent by GFI MailEssentials for Exchange/SMTP.