[Evolution] Backup Evolution Data .. only works for "On This Computer"?

[Joakim Tjernlund]

On Mon, 2015-10-19 at 17:24 +0000, Joakim Tjernlund wrote:
> On Mon, 2015-10-19 at 19:06 +0200, Milan Crha wrote:
> > On Mon, 2015-10-19 at 16:13 +0000, Joakim Tjernlund wrote:
> > > I trying to save all my Exchange mails(using EWS) to local disk and tried using
> > > "Backup Evolution Data" but the resulting file is only a few KB's so obviously 
> > > it didn't work.
> > 
> > 	Hi,
> > the backup skips caches, and as the evolution-ews account is only a
> > local copy of the remote data, thus everything is stored in the cache,
> > then those are skipped from the backup.
> 
> 
> > 
> > > So I figured I could use "Copy Folder to" each folder from Exchange account
> > > to "On This Computer" but then I lost the "Received" date as Evo rewrites 
> > > the date.
> > 
> > Interesting, I didn't know that. The Received column date is derived
> > from Received headers, or I always thought it is, but even for messages
> > which do have the Received header the Received column is populated with
> > the date which corresponds to the date when the message was added into
> > an On This Computer folder.
> > That feels like a bug in the Maildir provider [1]. For example MBOX
> > (spool) provider doesn't suffer of this and derives the Received time
> > from the message headers.
> 
> Yes it does feel like a bug, Date does not suffer from this bug though.
> One annoying "feature" using "Copy Folder To" is that I can mark my toplevel
> Folders dir. but I cannot select "On This Computer" to store it on the same
> level.
> 
> I would be happy to test a patch fixing the Received bug as we soon will
> have limited storage in Exchange and I want to store a local copy before that happens.

hmm, while playing with Copy Folder to I get a lot of:
  Error while Copying folder Folders/DevPPC.
  Failed to move message cache file.
On a folder with mail going back to 2009, guess some of these mails are "corrupt"
in some way but I cannot tell which ones.

 Jocke