Collection Evaluator failed to update collection "%1" in the collection source. (On primary sites, this is the site database. ...

%11Collection Evaluator failed to update collection "%1" in the collection source. (On primary sites, this is the site database. On secondary sites, this is \Sms\inboxes\colleval.box.)%12

Possible cause: Low disk space on the disk drive of the site server inbox.
Solution: Make more space available on that drive.%0