The whole problem that we now had to take care of marking mails as Read was a misunderstanding of the code. As I assumed since we saved the mail. The property change of "UnRead" would then not be synced to the server, but more testing and user feedback after the last release has shown that the even FC99 which we observed in the "Uncancellable write event" cases was sent to us in conjunction with the property change of UnRead.

Very good suggestion! +1
I believe Werner and Alexander will agree, too, as we talked about that tab the other day and that showing only the last certification would be preferable

I would propose two more changes to make the dialog behave in a way that seems logical to me:

I like KMessageWidget although I think it's not very accessible, i.e. the user isn't notified when it's shown. Hmm, we could probably focus the message widget when it's shown. Then screen readers should read the text.

I'm not sure this is a good idea. We are trading one UI quirk (all columns except the first one can be moved) with another UI quirk (sometimes all columns can be move and sometimes all columns except the first one can be moved). The first behavior is at least consistent across all views.

https://invent.kde.org/pim/kleopatra/-/merge_requests/273 and https://invent.kde.org/pim/libkleo/-/merge_requests/127

If this is easy to solve and backport, I would like to have this in the next release, as we did a lot of column related changes in other tables already for that release.

Looking at why this isn't working correctly, my understanding is that we need to do very specific things to make this work on windows at all, see https://doc.qt.io/qt-6/qwindowsmimeconverter.html and https://doc.qt.io/qt-5/qwinmime.html (which i did not realize before yesterday). Since this would require spending probably a few days on this (and writing different code for qt5 and qt6, unfortunately), I'm proposing to remove this from the release and postponing the implementation for Qt6 until after the next release

This is another side effect of: dd3ff8397aaf62e58fa9405ddc5397cb6bcfdc29 and 1f9c757872b033e1be8199c4d488ac84bf8f07bd before that revision the code that changed IPM.Note.GpgOL.MultipartSigned to IPM.Note.SMIME.MultipartSigned was only executed for S/MIME mails. I do now understand that the code in question at the beginning of decryptVerify_o was meant for other Addins, Outlook Web Interface etc. to ensure that the message class on the server was always IPM.Note.SMIME and not some GpgOL specific class so that outlook or other tools like securePIM would still treat the mail as S/MIME.

This is not a distinct issue from T7242 but the same.

I went for the placeholder text because you asked what should be shown on error. And I would rather not follow your suggestion and show an empty widget but keep the placeholder text then.

I like it. BTW, even the unblocking should not be easy to access because users will anyway enter the wrong PUK and then the card is bricked (ready for a factory reset).

NetKey card widget with Card Actions button (because pictures say more than words)

This is way too much text, people. And changing the placeholder widget wasn't part of the original description. Please create a new ticket for this.

In T7018#190062, @ebo wrote:

Suggestion for the "placeholder" screen:
Only show "Please insert a compatible smartcard." And then below: "Known supported smartcards are listed at https://gnupg.com/kb/smartcards.html".