atypical@cloud-vps:~$ sudo su debian-spamd
$ chown -R vmail:vmail /etc/sievesa-learn --spam -u debian-spamd --showdots --dir /home/mailboxes/maildir/atypical/cur^[[B
chown: unrecognized option '--spam'
Try 'chown --help' for more information.
$ sa-learn --spam -u debian-spamd --showdots --dir /home/mailboxes/maildir/atypical/cur
archive-iterator: no access to /home/mailboxes/maildir/atypical/cur: Permission denied at /usr/share/perl5/Mail/SpamAssassin/ArchiveIterator.pm line 591.
archive-iterator: no access to /home/mailboxes/maildir/atypical/cur: Permission denied at /usr/share/perl5/Mail/SpamAssassin/ArchiveIterator.pm line 833.
archive-iterator: unable to open /home/mailboxes/maildir/atypical/cur: Permission denied

Learned tokens from 0 message(s) (0 message(s) examined)
$ exit