On Aug 12, 2015, at 11:04 AM, Andrzej A. Filip <andrzej.fi...@gmail.com> wrote: > >
<..snip..> > Could you provide the following info: > a) mailbox type (maildir/mbox/dbox/...) maildir > [mail_location in dovecot's config] /srv/mail/<domain>/<user-mailbox>/ > b) file system type (ext2/ext3/ext4/fat32/...) > [provided by "df -T" command on my system] As I said ext4. Since I posted I've changed a couple of things: ulimit -n 8192, and disabled fsync as in mail_fsync = never. I'm not sure if I'll put it back in the LMTP section or not. Given all the hardware abstraction layers. -Chad