Dovecot seems to configure namespaces by default (conf.d/10-mail.conf
and conf.d/15-mailboxes.conf
) this way:
# 10-mail.conf
mail_location = mbox:~/mail:INBOX=/var/mail/%u
namespace inbox {
inbox = yes
}
# 15-mailboxes.conf
namespace inbox {
prefix = INBOX.
mailbox Drafts {
special_use = \Drafts
}
...
}
Now some clients seem to get them right as INBOX.Sent
(Thunderbird), others create INBOX.INBOX.Sent
(K9-Mail).
I suppose there may be some confusion with maildir vs. mbox how to handle subfolders and i am unsure if it should be prefix =
(empty) to solve the problem or if the INBOX.
prefix is actually correct there and it's maybe a client problem.