Are there migration tools to migrate UWash IMAP .mbox-format systems to SunONE Messaging Server?

We are looking at a migration from our Sendmail/UWash IMAP/POP-based email system to the SunONE messaging server. We need to know if there is a migration process in place to make the transition easy for our institution.
[233 byte] By [708376] at [2007-11-25 7:14:10]
# 1
In SunONE MS (iMS 5.2) there is a program, imsimport, that will do what you need. You will have to write a wrapper shell script around it but that is easy. You can run multiple instances of imsimport on different users at the same time. The limiting factor is your hardware/performance.
708686 at 2007-6-29 17:48:49 > top of Java-index,E-Mail, Calendar, & Collaboration,Sun Java System Messaging Server...