How to import an mbox to an existing user as a new mailbox

[Paul Hoffman]

Greetings. I have a bunch of mbox files that I want to import to an 
existing user, each into a new mailbox. That is, I want to import the 
file project1.mbox to user Foo, into a newly-created mailbox called 
"Project 1". Is there a dovecot tool to do this on the server?

--Paul Hoffman