Cannot write to write-only IMAP mailbox

[Nikolaus Rath <Nikolaus@rath.org>]

Hello,

I reported this bug a while ago and there has been no reply at all. I
just wanted to bring the issue up again in case someone has some time
available now that he might be willing to spend on this:

On my IMAP server I have a group called "unrecognized-ham" that cannot
be read by anyone, but can be looked up and inserted to by anyone. As
the name suggests, mail in this folder is automatically analyzed to
correct mistakes made by a bayesian spam classifier.

Unfortunately it is not possible to access this group with gnus. When
I am in a different IMAP mailbox and try to copy a message with B c,
gnus complains that the group does not exist. Any attempt to create it
fails of course. Also I cannot see the group when using group apropos
and I cannot subscribe to it with U.

In Thunderbird, there is no problem at all. The group is visible and I
can copy messages into it.

The IMAP server is cyrus 2.2. The group has an acl with:

ebox:~# cyradm localhost
IMAP Password: 
ebox.rath.org> lam unrecognized-ham
sa-learn lrswid
anyone li
ebox.rath.org> 

My gnus version is
 - Gnus v5.11
 - GNU Emacs 22.1.1 (i486-pc-linux-gnu, GTK+ Version 2.12.9)
   of 2008-05-03 on terranova, modified by Ubuntu


Here is the debug output that I got from `imap-log' und `imap-debug'
when I start gnus and try to write into the mailbox (I have only
included the parts that I consider relevant since it was quite a long
log):

,----
| * OK ebox Cyrus IMAP4 v2.2.13-Debian-2.2.13-10 server ready
| 1 CAPABILITY
| * CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ MAILBOX-REFERRALS NAMESPACE UIDPLUS ID
NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND BINARY SORT THREAD=ORDEREDSUBJECT
THREAD=REFERENCES ANNOTATEMORE IDLE AUTH=PLAIN SASL-IR
| 1 OK Completed
| 2 LOGIN XXXXXXX
| 2 OK User logged in
| 3 LIST "" "*%"
| * LIST (\Noinferiors) "." "INBOX"
| * LIST [[removed some stuff]
| * LIST (\Noselect \HasChildren) "." "Shared"
| * LIST (\HasNoChildren) "." "Shared.unrecognized-ham"
| * LIST (\HasNoChildren) "." "Shared.unrecognized-spam"
| 3 OK Completed (0.000 secs 46 calls)
| [....]
| 
| 30 EXAMINE "Shared.unrecognized-spam"
| * FLAGS (\Answered \Flagged \Draft \Deleted \Seen)
| * OK [PERMANENTFLAGS ()]  
| * 0 EXISTS
| * 0 RECENT
| * OK [UIDVALIDITY 1202638985]  
| * OK [UIDNEXT 116]  
| 30 OK [READ-ONLY] Completed
| [....]
| 49 EXAMINE "Shared.unrecognized-ham"
| 49 NO Permission denied
| 50 LSUB "" "*%"
| * LSUB (\Noinferiors) "." "INBOX"
| [...]
| * LSUB (\Noselect \HasChildren) "." "Shared"
| * LSUB () "." "Shared.unrecognized-ham"
| * LSUB () "." "Shared.unrecognized-spam"
| [...]
| 50 OK Completed (0.010 secs 40 calls)
| 87 OK [READ-ONLY] Completed
| 88 EXAMINE "Shared.unrecognized-ham"
| 88 NO Permission denied
| 89 LOGOUT
| * BYE LOGOUT received
| 89 OK Completed
`----
   


If you need more debug information, I'll be happy to provide it.

Best,

   -Nikolaus

-- 
 »Time flies like an arrow, fruit flies like a Banana.«

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