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@virtualevents365.com" NIL "support" "virtualevents365.com")) (("support@virtualevents365.com" NIL "support" "virtualevents365.com")) (("support@virtualevents365.com" NIL "support" "virtualevents365.com")) (("damocles-@hotmail.com" NIL "damocles-" "hotmail.com")) NIL NIL NIL "<6955854.2731259063914762.JavaMail.root@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 }