274933 - Messages in Junk folder are not marked as junk

Status: VERIFIED DUPLICATE of bug 195737

(Thunderbird :: Mail Window Front End, defect)

Description

[hjp]

All messages in the junk folder should be marked as junk so that the user can
"unjunk" the false positives.

Comment 1

[OstGote!]

Do you have your own filters which move messages to the junk folder or are all
msg moved to the folder by the junk mail control?

Comment 2

[hjp]

They are moved by the Junk mail control.

There are some filters, but none of them touch the Junk folder.

However, all junk mails which arrived since yesterday are properly marked as 
spam. Now I'm trying to figure out what I changed (besides installing enigmail,
which hopefully doesn't matter).

Comment 3

[hjp]

No configuration change, AFAICS.

I just tried to remove the Junk.msf file to force TB reevaluate the junk status
of the mails in the Junk folder and now no mail is marked as junk (I have to
wait for some new spam to arrive to see whether it will be marked as junk). 

So I think it is possible that the .msf file was corrupted somehow and the junk
status of all messages already in the junk folder was lost. New messages were
then correctly marked as junk (although that is not what I remember: I am
reasonably sure that I waited for a few new junk messages to arrive and
confirmed that they were also not marked as junk before submitting the bug report).

Comment 4

[WADA:World Anti-bad-Duping Agency]

(In reply to comment #3)
> I just tried to remove the Junk.msf file to force TB reevaluate the junk status
> of the mails in the Junk folder and now no mail is marked as junk

This is Bug 195737.
> Bug 195737 Junk mail flag should be stored in mbox, instead of msf

In the past, many other problems seemed to cause "Junk status loss", but above
bug seems to be the cause of more than half(near almost all) recent "Junk status
loss" .

Comment 5

[hjp]

> This is Bug 195737.
> > Bug 195737 Junk mail flag should be stored in mbox, instead of msf

Yes, most likely. At least I think the problem in my case was related to a
corrupted/lost .msf file, as all new messages are now again marked correctly.
Whether storing junk status in the mbox is the correct solution is debatable.

Marking as duplicate.

*** This bug has been marked as a duplicate of 195737 ***