[Bug 282245] namespaces configuration still required

[Cristian Tibirna]

https://bugs.kde.org/show_bug.cgi?id=282245





--- Comment #5 from Cristian Tibirna <tibirna kde org>  2011-09-20 00:39:40 ---
openssl s_client -connect @@@:# -quiet
* OK [CAPABILITY IMAP4REV1 LITERAL+ SASL-IR LOGIN-REFERRALS AUTH=PLAIN
AUTH=LOGIN] merlin.giref.ulaval.ca IMAP4rev1 2004.357 at Mon, 19 Sep 2011
20:12:38 -0400 (EDT)

A LOGIN ctibirna **
A OK [CAPABILITY IMAP4REV1 LITERAL+ IDLE NAMESPACE MAILBOX-REFERRALS BINARY
UNSELECT SCAN SORT THREAD=REFERENCES THREAD=ORDEREDSUBJECT MULTIAPPEND] User
ctibirna authenticated

B NAMESPACE
* NAMESPACE (("" "/")("#mhinbox" NIL)("#mh/" "/")) (("~" "/")) (("#shared/"
"/")("#ftp/" "/")("#news." ".")("#public/" "/"))
B OK NAMESPACE completed

The LIST command returned the full list of all files contained in my user home
directory, including all hidden files and contents of hidden (dot) directories.
This is absolutely huge, 80K lines, it can take anywhere from 15s to receive on
local (fast) network, and up to many minutes, depending on server load. This is
why I don't paste that here. The format returned is absolutely standard. For
example:
- for directories:
* LIST (\NoSelect) "/" imap-mail/WORK/ATTIC
- for files:
* LIST (\NoInferiors \UnMarked) "/" imap-mail/WORK/ATTIC/fvwm

At the end, as expected:
C OK LIST completed

The LSUB command returns whatever filename I had put in ~/.mailboxlist on the
server in order to try to work around the issue. E.g.:
D LSUB "" *
* LSUB () "/" imap-mail/WORK/ATTIC/fvwm
D OK LSUB completed

Worthy notices:
- as you can see, this is a rather old (and presumably very well known) server
software. It is the UW imapd, which was the "de facto" testing implementation
for the imap protocol, I guess.
- this exactly same server works perfectly with kmail1
- once one worked around this particular problem, many many other issues
appear: 
  - unuseable slowliness, 
  - akonadi full blocking, 
  - server-side access locking (probably throught DoS; no other clients can
access the mailboxes other than read-only)
  - deleted messages reappear at next kmail2 restart etc.

Thanks for your attention.

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