Really thanks to Edward Rudd. With this script I could successfully create a standard mailboxes file from the users directories, but still when creating the mailboxes.db using ctl_mboxlist -u < mailboxes, it converts just 1 record with just 1 folder inside it. I´ve tried ctl_cyrusdb -r also, but no success.
Details: cyrus-sasl-2.1.10: ./configure --disable-krb4 --enable-login --enable-plain --enable-anon -- enable-digest --enable-cram with-dbpath=/rede/newmail/etc/sasldb2 cyrus-imapd-2.1.11: ./configure --disable-krb4 --disable-gssapi --enable-login --with- sasldir=/usr/lib/sasl2 --with-dbdir=/usr/local/BerkeleyDB.4.1 --with-mboxlist- db=skiplist --with-duplicate-db=db3_nosync --with-seen-db=skiplist --with-subs- db=flat --with-tls
