[Dovecot] NO Unknown subscription namespace.

[mailing lists]

Hello,

what this message means?

"NO Unknown subscription namespace."

the shared namespace is visible and I can fetch messages from it, but subscription fails with the above message.

(user002 is sharing the folder named docs-users002 with user user001)


# telnet localhost 143
Trying ::1...
Connected to localhost.
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN] Dovecot ready.
. login user001 secret
. OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS ACL RIGHTS=texk] Logged in
. list "shared." "*"
* LIST (\Noselect \HasChildren) "." "shared.user002"
. OK List completed.
. list "shared.user002." "*"
* LIST (\HasNoChildren) "." "shared.user002.docs-user002"
. OK List completed.
. list "shared.user002.docs-user002." "*"
. OK List completed.
. select "shared.user002.docs-user002"
* FLAGS (\Answered \Flagged \Deleted \Seen \Draft)
* OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft)] Flags permitted.
* 2 EXISTS
* 0 RECENT
* OK [UIDVALIDITY 1315765265] UIDs valid
* OK [UIDNEXT 3] Predicted next UID
* OK [HIGHESTMODSEQ 3] Highest
. OK [READ-WRITE] Select completed.
. fetch 1 all
* 1 FETCH (FLAGS (\Seen) INTERNALDATE "24-Nov-2009 11:58:34 +0100" RFC822.SIZE 3734 ENVELOPE ("Tue, 24 Nov 2009 07:58:34 -0400 (AST)" "Thank you for registering for the Red Hat Virtual Experience" (("support at virtualevents365.com" NIL "support" "virtualevents365.com")) (("support at virtualevents365.com" NIL "support" "virtualevents365.com")) (("support at virtualevents365.com" NIL "support" "virtualevents365.com")) (("damocles- at hotmail.com" NIL "damocles-" "hotmail.com")) NIL NIL NIL "<6955854.2731259063914762.JavaMail.root at app130.vs.int.cgsinc.ca>"))
. OK Fetch completed.
. subscribe "shared.user002.docs-user002"
. NO Unknown subscription namespace.
. logout
* BYE Logging out
. OK Logout completed.
Connection closed by foreign host.

     /----------------/

namespace {
  inbox = yes
  location = 
  prefix = INBOX.
  separator = .
  subscriptions = yes
}
namespace {
  list = yes
  location = maildir:/var/virtual-maildir/%%n
  prefix = shared.%%n.
  separator = .
  subscriptions = no
  type = shared
}