Can not invite others to a calendar event using Entourage andExchange 2007

[Bob A]

You can invite others to events using OWA and Outlook, but if you try
with Entourage 2004 or 2008, you get:

Your message
did not reach the following recipient(s):

User Name on Mon, 10 Mar 2008 16:42:24 -0500
The message contains a content type that is not supported
< #5.6.0 smtp;554 5.6.0
STOREDRV.Deliver.Exception:ObjectValidationException; Failed to
process
message due to a permanent exception>
Reporting-MTA: dns; server.domain.com

Final-Recipient: RFC822; (e-mail address removed)
Action: failed
Status: 5.6.0
X-Supplementary-Info: < #5.6.0 smtp;554 5.6.0
STOREDRV.Deliver.Exception:ObjectValidationException; Failed to
process
message due to a permanent exception>
X-Display-Name: User Name

 

[Bob A]

Also, everything else works in this environment and has worked for the
past 8 months. No other issues regarding this, and nothing has been
updated.

It's so strange. Anyone else seeing this?

 

[Chet]

I get this error as well when creating an invite or accepting an
invite. I get a reply from the postmaster with subject: Delivery
Status Notification (Failure) and the following attachment.. Any fix
or this....

Reporting-MTA: dns;xxx.xxx.com
Received-From-MTA: dns;border2.xxx.com
Arrival-Date: Tue, 11 Mar 2008 15:56:17 -0400

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
X-Display-Name: xxx

 

[Trent Marando]

I get the exact same thing from just one user in our factility when doing
task modifications