Mail transport protection

SMTP server-level filtering is secured by a specialized plugin. In Microsoft Exchange Server 2007 and 2010, the plugin is registered as a transport agent on the Edge or the Hub roles of the Microsoft Exchange Server.

SMTP server-level filtering by a transport agent provides protection in the form of Antivirus, Antispam and user-defined rules. As opposed to VSAPI filtering, SMTP server-level filtering is performed before the scanned email arrives in the Microsoft Exchange Server mailbox.

Formerly known as Message filtering on the SMTP server level. This protection is provided by the transport agent and is only available for Microsoft Exchange Server 2007 or newer operating in the Edge Transport Server or Hub Transport Server role. This type of scanning can be performed on a single server installation with multiple Exchange Server roles on one computer (as long as it has one of mentioned server roles).

Mail transport protection is available for the following systems:

Exchange Server version and server role

Antispam protection

Anti-Phishing protection

Rules

Mail transport protection

On-demand mailbox database scan

Mailbox database protection

Microsoft Exchange Server 2007 (Hub)

Microsoft Exchange Server 2007 (Edge)

Microsoft Exchange Server 2010 (multiple roles)

Microsoft Exchange Server 2013 (multiple roles)

Microsoft Exchange Server 2013 (Edge)

Microsoft Exchange Server 2013 (Mailbox)

Microsoft Exchange Server 2016 (Edge)

Microsoft Exchange Server 2016 (Mailbox)

Microsoft Exchange Server 2019 (Edge)

Microsoft Exchange Server 2019 (Mailbox)

Windows Small Business Server 2008 SP2

Windows Small Business Server 2011