Re: E-Mails are cleared out from IMAP-folders after mailbox migration

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From: Ingo =?UTF-8?B?S2zDtmNrZXI=?= <[email protected]>
To: [email protected]
Date: Tue, 30 Sep 2025 17:50:34 +0200
Message-ID: <2706840.vYhyI6sBWr@daneel>
In-Reply-To: <[email protected]>
MIME-Version: 1.0

On Dienstag, 30. September 2025 15:53:54 Mitteleurop=C3=A4ische Sommerzeit =
Thomas=20
Hejze wrote:
> > > System: kdepim/akonadi binary packages of a standard OpenSuse 15.6
> > > installation, version: 23.08.5, release bp156.1.3.
> >=20
> > This version is 2 years old. The current version is 25.08.1.
>=20
> Maybe, but this is the version OpenSuse ships for their distro 15.6, the
> OpenSuse development communitiy considers that version as stable.

Yes, it's stable. The upside of using a distribution like openSUSE Leap is=
=20
that most applications receive little or no major updates so that nothing c=
an=20
break. The downside is that most applications will receive little or no=20
bugfixes either. I'm using openSUSE Tumbleweed which receives loads of upda=
tes=20
all of the time. Occasionally, something breaks. Most of the time it's quic=
kly=20
fixes with the next round of updates. Both approaches have their pros and c=
ons.

I do remember that there was a severe bug in KMail when you moved multiple=
=20
messages. It looked as if all messages had been moved to the new location b=
ut=20
in reality only the first message had been moved successfully. I think this=
 bug=20
was fixed long before the version you are using but I'm not sure. Copying=20
multiple messages worked without problems.

> Do you
> think the data (emails) management system has undergone major changes from
> 23.08 to 25.08?

Under the hood there have been major changes because all KDE apps were port=
ed=20
from Qt 5 to Qt 6. Apart from that quite a few bugs have been fixed.

> > Maybe it helps if you create the folders manually on the new server and
> > then copy the mails from the local folders to the remote folders one
> > folder at a time.
>=20
> That's what I did. In my Webmail interface I created a parallel tree
> structure, say instead of folder "ABC" I created a folder "ABC___ " (for
> each affected folder). Then in contact I copied the messages of the
> affected folders to their destination. This time the messages remained.
> They even remained when I moved them to their target destination (i.e.
> ABC___ -> ABC).
>=20
> So the problem seems to be solved for the moment.

That's good to hear.

> Still I have a bad
> feeling, considering that E-Mails might vanish without actively deleting
> them.

That's understandable. Obviously, this should never happen, but moving impl=
ies=20
deleting at the old location.

> Some of the emails I have been keeping for more than fifteen years.
> I'd probably notice that they are gone not before I start searching for
> them. I think, I will make more frequent use of the vailable backup tools
> such as pimsettingexporter.

Yes, backups are important. I'm not sure if pimsettingexporter is the best=
=20
tool for this, but any tool is better than no backup.

> > Otherwise, the best advice I can give you is to try a newer version of
> > KMail. A slow-moving distribution like yours may have some advantages, =
but
> > the fact that it provides super old versions of applications which will
> > never receive any bugfixes is rather a disadvantage.
>=20
> I have been using SuSE/OpenSuse over decades, since a friend persuaded me=
 to
> give Linux a chance. As to their versions of applications philosophy, wel=
l,
> it's their philosophy and a lot of people put in much effort and time to
> provide us a stable desktop distribution, which is easy to work with.

Yes, and that's fine. I'm also using openSUSE since decades. The only diffe=
rence=20
is that I chose the always-bleeding-edge Tumbleweed over the stable Leap.=20
Since I'm developing KDE apps for me the always-bleeding-edge variant is th=
e=20
better choice.

> There are thousands of packages. To be honest, kdepim is the part which
> gives me most of the headaches among these.

Yes. Sadly, KDE PIM gets way too little love. Only very few people are work=
ing=20
on those apps.

Regards,
Ingo

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