Hi, Hello. For the last year, each time i've tried updating dovecot from 2.2.x to 2.3.x, I had to rollback because of the following problem: Users don't "see" new emails arriving in subdirs. To be specific * we mostly use/tested thunderbird client * we use maildrop for delivery * this is using imap, not pop3 * when a new email arrives, thunderbird renders the dir name in blue and appends a "(1)" (or more..). That's what we call 'see' * this happens only on 'subdirs', not the main directory. * the server is a typical linux amd64, using the gentoo distribution More testing shows that * if we switch delivery to dovecot-lda, it works ok. But we can't commit that change, or at least not now/easily. Our users heavily use .mailfilter * if the user is currently viewing the subdir, then email notification is working * better : if the user went on the subdir and then in another dir, it keeps on working. It seems we need to 'open' it at least once for notification to work * "maildir_very_dirty_syncs = no" doesn't help (we had =yes) * "mailbox_list_index = no" doesn't help * i can confirm inotify was detected/used in autoconf when installed (anyway it works well with 2.2) I'm always on freenode (orzel). I'll be in #dovecot the next days at least. greetings, -- Thomas Capricelli