Version: 4.7.2 (using KDE 4.7.3) OS: Linux In kmail 4.7.4. Using a old kmail-formatted maildir (mixedmaildir). In the folders tree, I selected a folder with many subfolders and pressed Ctrl-F5 (recursive refresh). There was no visible sign of progress (probably because the medium is a slow USB 1.1 disk). I pressed Ctrl-F5 (recursive refresh) again. Then, after a long processing time, I found that in some (few) folders some mails have been removed (compared to a backup a made just before the operation). Reproducible: Didn't try Steps to Reproduce: Press Ctrl-F5 two or more times on a folder (in a mixedmaildir resource) with many subfolders. Actual Results: Some of the mailbox files are modified: some mails are simply deleted. In some case it were 1-3 mails at the end of the mailbox file; in other cases apparently random mails inside the mailbox file. Expected Results: None of the mailbox files (.mbox format) gets modified by the operation.
This bug has only been reported for versions before 4.14, which have been unsupported for at least two years now. Can anyone tell if this bug still present? If noone confirms this bug for a Framework-based version of kontact (version 5.0 or later, as part of KDE Applications 15.08 or later), it gets closed in about three months.
Just as announced in my last comment, I close this bug. If you encounter it again in a recent version (at least 5.0 aka 15.08), please open a new one unless it already exists. Thank you for all your input.