A couple of months ago I upgraded to 2.5.3 and had one user who suddenly
couldn't access several of his mail folders. The folder names were
displayed in the Thunderbird side panel in grey italics. I ran these
commands:
# systemctl stop cyrus-master
# su - cyrus
# /usr/lib/cyrus/bin
Ellie sent this helpful email (see below) a couple of months ago, and at
the time I did not have an answer to this question:
> At this point, I believe master is still running as root (it doesn't
> become_cyrus() until a little while later), so it's curious that the
> request is being rejected.
