Mailbox migration from iPlanet

[Juan de Castro Paredes]

 Hi all,

 We have got right now an iPlanet Messaging Server 4.15 Patch 2 that manages
around
50.000 users, and would like to migrate to QMail 1.03. Our main problem
right now
is the migration of the mailboxes of the users. Does anybody have any
experience in this kind of migration?

 I would really, really appreciate any help or tip or URL where I could find
any information about this issue.

 Thank you very much to all, regards,

 Juan.