[Bug 50039] Re: [Data Loss] KMail mysteriously changes messages to "No Subject", "Unknown" sender

[Ace Suares]

Just a question, did you try to stop kmail, remove the index files, and start kmail again ?

I don't know if that will result in more loss, so be carefull (backup
first?).

I had a similar experience after kmail had crashed, sometimes.

I would then delete the files 
.trash.index
.trash.index.ids
.trash.index.sorted
(for instance, every folder has its own index files)
and then restart kmail (took sometimes a long time depending on how many messages needed to be indexed).
After that, all the messages where back to normal again.

I use maildir support in Kmail (which I think is the default) and
another way to check if the messages are still there is to look in the
folder (for instance trash) and then into the 'cur' directory and check
if there are files like

1194581272.6947.QLKNP
1194581272.6947.RmAPg
1194581274.6947.Hp1J9
1194581274.6947.IcNzr
1194581274.6947.jHCOz
1194581275.6947.a7ZSB

If they are zero-length, the messages are gone for sure. If not,
reindexing may help.

Regarding the reported problem with IMAP, I don't think reindexing will
help.

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[Data Loss] KMail mysteriously changes messages to "No Subject", "Unknown" sender
https://bugs.launchpad.net/bugs/50039
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