> It suggests  that the  index was  reset, and  that this  left no  time to
> retrieve the first message (indexing cannot be interrupted).
 
Does the index get reset whenever a digest fills up?  The list has a
limit of 1000 lines and digests go out several times per day, so there
would be lots of opportunities to hit a bad time.
 
> But, in  principle, the index shouldn't  get reset unless the  list owner
> does a DATABASE REFRESH or updates one of the archive files.
 
In short, is that something that could happen automatically when a digest
reaches the line limit?  The LISTSERV in question is 1.8a, by the way.
                                          John