Microsoft KB Archive/943627

= The following warning may be randomly logged in the ProgramLog.txt file after you install Antigen 9.0 for Exchange Service Pack 1: &quot;WARNING: TruncateEmailList detected that truncation is necessary Some data will be removed&quot; =

Article ID: 943627

Article Last Modified on 11/28/2007

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APPLIES TO


 * Microsoft Antigen for Exchange

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SYMPTOMS
After you install Microsoft Antigen 9.0 for Exchange Service Pack 1 (SP1), the following information may be randomly logged in the ProgramLog.txt log file:

WARNING: TruncateEmailList detected that truncation is necessary. Some data will be removed.

You experience this issue when the following conditions are true:
 * Antigen for Exchange receives a message that triggers one or more spam filters or attachment filters.
 * This message contains one or more fields that contain more than 255 characters.



CAUSE
This issue occurs because of a change in Antigen 9.0 SP1.

When Antigen detects spam, or when another detection is triggered, Antigen creates an entry for the affected e-mail message in the Incidents database and in the Quarantine database. This entry contains information about the message that triggered the detection.

There is a limit to the size of the fields that may be added to the databases. In the release version of Antigen 9.0 for Exchange, an entry is not added to the databases for a message that contains field lengths that are too large.

This is changed in Antigen 9.0 SP1. Instead of losing the entry data because of a field length issue, Antigen truncates the list of e-mail addresses together with the corresponding names to a maximum length of 255 characters. Then, Antigen creates an entry in the databases that contain this truncated list. Because some information about the affected e-mail message is lost, Antigen 9.0 for Exchange SP1 logs a warning message in the ProgramLog.txt file.

Note If a message that had truncated fields is delivered from Quarantine, some original recipients may not receive the message. Specifically, no recipient who was listed after the 255 character limit of a particular field receives a message that is delivered from Quarantine.



MORE INFORMATION
In Antigen 9.0 for Exchange SP1, the following fields are truncated to fit within the 255 character database limit:
 * Recipient Names
 * Recipient Addresses
 * CC Names
 * CC Addresses
 * BCC Names
 * BCC Addresses

Keywords: kberrmsg kbtshoot kbprb kbspam KB943627

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