Comment # 2 on bug 1141833 from Peter Varkoly

General Dovecot 2.0 changes:
Note that the Dovecot v2.0 LDA does not create mailfolders automatically by
default anymore. If your configuration relies on this, you need to enable the
lda_mailbox_autocreate setting for LDA or start using the Sieve mailbox
extension���������s :create tag for fileinto commands.