Sounds like the SMTP server does not understand ESMTP protocol. Are you sure it is the relay server. I have seen this happen when a Cisco PIX firewall has Fixup applied.
----- Original Message ----- From: "Frost, Andy" <[EMAIL PROTECTED]> To: "Exchange Discussions" <[EMAIL PROTECTED]> Sent: Monday, May 27, 2002 12:08 PM Subject: SMTP error 554 with relay > We have an Exchange 5.5 sp4 on win2k Server on our LAN. Our SMTP mail is > delivered to this by 2 routes. The first/primary route is direct through the > firewall ( which works fine ) and the second is relayed via an external IIS > v5 SMTP machine. Every so often we get the following type of error (smtp > 554 ) to our postmaster from the relayed SMTP machine .... > > > Reporting-MTA: dns;VENUS.ARTiSANSW.COM > Received-From-MTA: dns;om33.yourmailsource.com > Arrival-Date: Sun, 26 May 2002 08:32:36 +0100 > > Final-Recipient: rfc822;[EMAIL PROTECTED] > Action: failed > Status: 5.6.1 > Diagnostic-Code: smtp;554 5.6.1 Body type not supported by Remote Host > > > > Now most of the mails that fail are HTML, but we can receive HTML mails fine > by the primary route. I have checked that the virus checker is not > interferring and the are no alerts near the time of the NDR messages. I > have also checked that messages can be delivered through telnet to port 25, > and that is OK through the IIS server so I dont understand what is wrong. > any ideas > Andy > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Archives: http://www.swynk.com/sitesearch/search.asp > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
