Question : Mail rejected for container policy reasons in Exchange 2k3

hello,

i get the following error message when any email comes from sdcvb.org to my domain. i have a spam appliance from Espion called the Interceptor which then forwards emails to my Exchange 2k3 Enterprise server. I am not sure what the "container policy reasons" are as i do not have anything within Exchange that should be rejecting these emails.

Any help would be appreciated. Thanks.

-=-=-=-=-=-

This is the Postfix program at host rhcinterceptor.remingtonhotels.com.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                       The Postfix program

ls.com>: host 207.193.174.253[207.193.174.253] said:
   550 5.5.0 Mail rejected for container policy reasons. (in reply to end of
   DATA command)


Final-Recipient: rfc822; vincephilip@remingtonhotels.com
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; host 207.193.174.253[207.193.174.253] said: 550
   5.5.0 Mail rejected for container policy reasons. (in reply to end of DATA
   command)

Answer : Mail rejected for container policy reasons in Exchange 2k3

The point is though - it is not an Exchange message. Therefore unless you have something else on the Exchange server that could be rejecting the email, the message is not coming from the Exchange server.
A google of the error points towards an antivirus package being the cause, but doesn't say which one or what the fix is.

Simon.