I have several IMAP accounts configured, one named "EPFL". After restoring files from backup, I now have an extra account listed in the folder view, named "EPFL (Offline)" (in addition to the working "EPFL" account, which can be removed and recreated in the Akonadi configuration without affecting this "EPFL (Offline)" item). This "EPFL (Offline)" item behaves rather oddly: mostly it appears the same as the real EPFL account, but (a) none of the mails appearing there change or can be change (they are all old emails), (b) the mails under "inbox" show header information only and cannot be opened (presumably due to offline status), and (c) two emails are listed under the "EPFL (Offline)" folder directly (not in inbox or some sub folder), one of which can be opened and one not. None of the emails appearing under this account can be deleted; the whole thing appears to be frozen (with the exception that editing the one message which can be opened and discarding the edited version creates a duplicate). This only showed up recently (just before upgrade, was same on KDE 4.9.x). The two messages mentioned in (c) above showed up in the same wierd way in the past at some point. Sorry for this rather confusing report. It's not a problem for me, but if I was developing Akonadi or kmail (I'm not) I'd want to investigate such wierd symptoms, hence the report. Reproducible: Didn't try
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 kmail2 (version 5.0 or later, as part of KDE Applications 15.12 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.