[Dovecot] mailutil?

dbox format needs at least two tools:

1. Expunging only marks the message having refcount=0. The actual disk space is freed only after calling a tool pointing to the user's dbox dir.

2. Ability to force index resync/rebuild in case it doesn't figure out itself that there's something wrong.

I'm starting to think about building a more generic mailutil tool, maybe something similar to what UW-IMAP has. So two questions:

• What should the tool be called? Probably not mailutil to avoid confusion. doveutil? dovemail? dovetool? mailtool?

• Is there any functionality you'd like it to do?