Am 01.03.2012 10:49, schrieb Nikos Gatsis: > A good tutorial is here: > http://cynici.wordpress.com/2010/12/06/how-to-migrate-32-bit-cyrus-imapd-mailboxes-to-64-bit/ > I test it and my new mailserver works fine after 10 min of migration. wow, looks promising. Cleans up things as well, correct? Thanks!