Hi All, Can anyone help me shed light on a problem im having? Whenever a users creates an email within the software we use (SQL based) it opens up an email with the users outlook and a pdf file attached, as soon as you click send you get the following error Delivery has failed to these recipients or distribution lists: ***@***.comThe e-mail system had a problem processing this message. Microsoft Exchange will not try to redeliver this message for you. Please provide the following diagnostic text to your system administrator. _____ Sent by Microsoft Exchange Server 2007 Diagnostic information for administrators: Generating server: server #554 5.6.0 STOREDRV.Submit.ExceptionropertyValidationException; Failed to process message due to a permanent exception ## Original message headers: Received: from server. ([172.26.40.1]) by server. ([172.26.40.1]) with mapi; Mon, 21 Jan 2008 15:22:34 +0000MIME-Version: 1.0Content-Type: text/plainDate: Mon, 21 Jan 2008 15:22:34 +0000Message-ID: <EDFE49E079E7904E9A63AF9B8ACEB3316DC34DBE4E@server >Subject: Property Listing Can anyone help me??!! Thanks, Ben

according to http://support.microsoft.com/kb/256321/ "5.6.0 Other or undefined media error" didn't like your attachment perhaps?

There is a know issue with certain types of attachments in the RTM version. Did you install SP1? This should fix a lot of issues. I've seen this happen with script files (SQLand Perl)as well. Cheers, Mark

We had a lot of issues with pdf attachments being flagged as spam by the content filter. check the agent logs on the receive connector.