Source: GroupWise Check utility (GWCheck).
Explanation: GWCheck cannot access the specified BLOB file containing the distribution list for a document in the library database (dmsh.db) in the post office.
Possible Cause: The library database is damaged.
Action: Perform a structural analyze/fix on the library. See "Analyzing and Fixing Library and Document Information" in "Databases" in the GroupWise 6.5 Administration Guide.