You send an e-mail message by using a Microsoft Exchange Server 2007 Edge server. When you do this, you receive a non-delivery report (NDR) message that includes the following information:
"Your message did not reach some or all of the intended recipients. Subject: <subject> Sent: <date, time> The following recipient(s) cannot be reached: <recipient> on <date, time> You do not have permission to send to this recipient. For assistance, contact your system administrator. <mailserver #5.7.1 smtp;550 5.7.1 Message rejected due to unacceptable attachments> "
This problem occurs if the Attachment Filtering agent is enabled on the Exchange Server 2007 Edge Server and if the e-mail message contains any of the following:
A compressed (.zip) file that is split into multiple files.
A compressed (.zip) file that implements ZIP64 extensions.
A Microsoft XML Paper Specification (.xps) file that is created with the .Net Framework.
To resolve this problem in Exchange Server 2007 Service Pack 1, install the latest update rollup for Exchange Server 2007 Service Pack 1. To resolve this problem in the release version of Exchange Server 2007, install Update Rollup 7 for Exchange Server 2007. For more information about Update Rollup 7 for Exchange Server 2007, see the following Exchange Help topic:
After you install the latest update rollup or service pack for Exchange 2007, you must add a new entry in the Edgetransport.exe.config XML file to enable the Attachment Filtering agent feature. To do this, follow these steps:
Stop the Transport service.
Locate the EdgeTransport.exe.config file. This file is located in the following path: