XCON: MTA 2026 and Internet Mail Service 3016 Logging Error Messages During Periods of High Server Use When Message Tracking Is Enabled (266383)

SYMPTOMS

If you enable message tracking, the following error messages may be logged in the application event log during periods of high server use:

Source: MSExchangeMTA: EventId: 2026
An internal MTA error occurred. Contact Microsoft Technical Support. Unable to write to the message tracking log, error '. [BASE XFER-IN 18 40] (16)

Source: MSExchangeIMC: EventId: 3016
An error occurred while logging a message tracking record. This does not affect message delivery. Verify that message tracking is configured correctly.

CAUSE

This behavior can occur if the message transfer agent (MTA) and Internet Mail Service write message-tracking information (located in the Tracking.log folder under Exchsrvr) by using the system attendant. Under heavy server use, the system attendant may run out of the worker thread that writes to the Tracking log, which leads to the error messages that are logged by the MTA and Internet Mail Service.

RESOLUTION

To resolve this problem, obtain the latest service pack for Exchange Server 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack

STATUS

Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 4.

MORE INFORMATION

For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

257348 XCON: 2026 and 3016 Warnings During Periods of High Server Use