[Bug 214059] New: "connection to account ... was broken" when syncing dir after deleting many emails

[Milian Wolff]

https://bugs.kde.org/show_bug.cgi?id=214059

           Summary: "connection to account ... was broken" when syncing
                    dir after deleting many emails
           Product: kmail
           Version: unspecified
          Platform: Archlinux Packages
        OS/Version: unspecified
            Status: NEW
          Severity: normal
          Priority: NOR
         Component: disconnected IMAP
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: mail at milianw.de


Version:            (using KDE 4.3.3)
Installed from:    Archlinux Packages

Hello!

I have a serious problem with DIMAP and KMail:

After I deleted a few thousand mails from one of my folders (enabled
expiration) I cannot sync it anymore. It checks properly for new mail but as
soon as it tries to upload anything I get "connection to account ... was
broken". The progress bar for the job shows "aborted".

I asked my host since I suspected that it's their fault but they could not find
anything related. So my impression is that KMail does either

a) something inefficient that makes the host block access (though retrieving
and syncing of other folders works fine).
b) the delete-transaction is too big and hits a limit on the side of my hoster
(either need to work around in kmail or tell me what setting my hoster has to
increase).
c) anything else :)

If you give me more details, i.e. places in sources to patch for debug
information (kdebugdialog did not help) I'll happily oblige.

PS: I tried rebuilding the index, rebuilding the cache and nothing works for
this folder. My hoster also cleaned the cache which did not help either.

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