As an aside, I today discovered another bug associated with that same module routine (after an hour or so of hair-pulling).

The line my $start_emaillist; should be my $start_emaillist = shift;

The effect of it not being so (pretty obvious) is that any parameter passed to the method is ignored, and the result set always starts from the first list, no matter where you ask it to start.

I've informed the module author of both problems, hopefully he'll fix it :)