[Dovecot] How can I force FTS reindexing?

I threw out my lucene-indexes folder because it seemed to be missing something, and I figured it would get regenerated. Unfortunately, dovecot is only FTS-indexing new mails that come in. Is there a way to get it to reindex everything?

-- Dave Abrahams BoostPro Computing Software Development Training http://www.boostpro.com Clang/LLVM/EDG Compilers C++ Boost