This explanation is in our dovecot.conf
namespace {
inbox = yes
location =
prefix =
# prefix = INBOX.
# Use 'prefix = INBOX.' for Courier-IMAP compatible transparent migration.
# This forces all client apps to create subfolders underneath/within
# the inbox instead of adjacent to it. It's
Dear list,
several years ago I created a QMT server with CentOS 5 running about 15
domains with Qmail, Vpopmail CourierIMAP and Squirrelmail.
I created a new server with Rocky Linux 8, Qmail, Dovecot and Roundcube
with a new domain and it works fine.
Now I successfully moved one of the