129073 - MS Exchange IMAP: non-standard characters in folder names on exchange server do not work

Status: VERIFIED FIXED

(MailNews Core :: Networking: IMAP, defect)

Description

[Gabor Nagypal]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.8) Gecko/20020204
BuildID:    2002020406

When acessing an non-English MS Exchange Server (in my case: German) and the
folder names have non-standard characters in them, like ü,ß or even & Mozilla
decodes the names wrong. When later Mozilla tries to access these folders,
always uses the false-decoded format, which results in a failed access.
Example:
Gelöschte Objekte becomes Gel&APY-schte Objekte, and when accessed the result is
"The requested item could not be found". 
Moreover, in the Subscribe... menu these wrong mailbox names apper after the
first Subscription and cannot be deleted. More specifically the "Subscribed"
flag can be unchecked, but the mailbox does not disappear from the mailbox list,
and running the Subscribe... dialog box again the folder is checked again.

Reproducible: Always
Steps to Reproduce:
1. Create an IMAP account, which connects to an Exchange server account which
has folder names containing non-English characters or &
2. Subscribe to a folder whith such "non-standard" name
3. Flase-decoded name apperas in the folder-list.
4. Double-click on the false name results in error message: "Mail server
responded: The requested item could not be found"
5. Invoke the Subscription... dialog again: the problematic name appears twice:
properly-decoded and false-decoded
6. Uncheck (unsubscribe from) the false-decoded name (the properly decoded is
not checked)
7. The false-name does not disappear from the folder list
8. Invoking the Subscription... dialog box again the situation is the same as in
Step 5

Actual Results:  See the step descriptions. The final result is that the
subscription cannot be deleted in any way (except deleting the mail account).

Expected Results:  Properly handle folder names with non-English characters, as
well. I suppose these names use some kind of UTF-encoding which is parsed
inproperly.
Also, unsubscribing from these folders should be possible.

Comment 1

[Gabor Nagypal]

The problem seems to be solved in mozilla 0.9.9 (Mozilla/5.0 (Windows; U;
Windows NT 5.0; en-US; rv:0.9.9) Gecko/20020311)
Therefore I mark it as solved.

Comment 2

[Gregg Meehan]

tested using build 20020905, this is working correctly. reporter concurrs this
is fixed. marking as VERIFIED