doveadm search -A tries to create mailboxes

[Bill Shirley]

[0:root at elmo ~]$ rpm -q dovecot
dovecot-2.2.18-2.fc22.x86_64

I got a surprise today when I tried the doveadm search function from:
http://wiki2.dovecot.org/Plugins/Expire

[0:root at elmo ~]$ doveadm search -A mailbox Trash savedbefore 30d
doveadm(clamscan): Error: User initialization failed: Namespace '': mkdir(//Maildir) failed: Permission denied 
(euid=982(clamscan) egid=289(clamscan) missing +w perm: /, dir owned by 0:0 mode=0555)
doveadm(clamscan): Error: User init failed
doveadm(nm-openconnect): Error: User initialization failed: Namespace '': mkdir(//Maildir) failed: Permission denied 
(euid=986(nm-openconnect) egid=293(nm-openconnect) missing +w perm: /, dir owned by 0:0 mode=0555)
doveadm(nm-openconnect): Error: User init failed
doveadm(openvpn): Error: User initialization failed: Namespace '': mkdir(/etc/openvpn/Maildir) failed: Permission denied 
(euid=987(openvpn) egid=296(openvpn) missing +w perm: /etc/openvpn, dir owned by 0:0 mode=0755)
doveadm(openvpn): Error: User init failed
.. plus several more

I wouldn't think the search function (or any operation) would try to create mailboxes.  These are system user ids
that don't have or need mailboxes.

Is this correct?

Bill