Hab das hie in der Knowledgebase dazu gefunden:
This issue was reported to Quality Engineering as SPR# CJON5JAPNB. In one particular situation, a user's mail file was corrupt. Running Compact on the mail file (right-click the mail file icon and choose Database --> Properties --> i panel --> Compact) displayed the following output in the log:
23-02-2004 12:55:54 PM Compacting 20a-1719.nsf
**** DbMarkCorrupt(NoteHeaderByBSID: Invalid note state is both deleted and a reference note (NoteID = 2298)), DB=20a-1719.nsf TID=[0ED4:0002-09E4] File=ntheader.c Line=289 ***
23-02-2004 12:55:59 PM Error compacting 20a-1719.nsf: Invalid or nonexistent document
23-02-2004 12:55:59 PM Database compactor process shutdown
Running maintenance (fixup, compact, updall) against this database fixed the problem.