Transport logs in Exchange 2016
Applies to: Exchange Server 2016
Topic Last Modified: 2017-04-26
Learn about transport logging in Exchange 2016 and the kinds of logs and information that is logged.
Transport logs provide information about what's happening in the transport pipeline. For more information about the transport pipeline, see Mail flow and the transport pipeline.
The transport logs in Exchange 2016 are described in the following table:
|Name||Description||Enabled by default?||Default location of log files|
Agent logging records the actions that are performed on messages by specific antispam transport agents on the Exchange server. For more information, see these topics:
Note that the folder isn't created until an agent attempts to write information to the log.
Connectivity logging records outbound message transmission activity by the transport services on the Exchange server. For more information, see these topics:
Message tracking and delivery reports for administrators
Message tracking is a detailed record of all message activity as mail flows through the transport pipeline on an Exchange server. For more information, see these topics:
Delivery reports for administrators is a targeted search of the message tracking log for messages that were sent to or from a specified mailbox. For more information, see these topics:
Pipeline tracing records snapshots of messages before and after the message is affected by transport agents in the transport pipeline. For more information, see these topics:
Note that the folder isn't created until pipeline tracing is enabled.
Protocol logging records the SMTP conversations that occur on Send connectors and Receive connectors during message delivery. For more information, see these topics:
Only on these connectors:
Routing table logging
Routing table logging periodically records snapshots of the routing table that Exchange servers uses to deliver messages. For more information, see these topics:
Note: The Routing Log Viewer is no longer available in the Exchange Toolbox.