Hello,

Every day, after booting and starting Kmail, I have to set the preferences for showing HTML mail eventhough they are set already.
What helps for me is to uncheck: Settings kmail - Security - Prefer HTML to plain text, confirm this, check the setting again and after the confirmation I see, until I switch off my computer, HTML mails.
I also set in the preferences per mail folder to show HTML messages, I have white-listed senders, still it's a no-go.
This bug is something which is as old as Kmail itself. I wonder why nobody ever wants to fix this.

What needs/can be done from my side to have this fixed?

What version of kmail are you using? (and what OS version?)

Searching bugs.kde.org for bugs related to html in kmail2, I see a couple bugs submitted which you might be running into:

https://bugs.kde.org/show_bug.cgi?id=366002
https://bugs.kde.org/show_bug.cgi?id=363027

There may be others as well, as I remember having run into this (or similar) a couple years ago and had found other similar bug reports.

airdrik wrote:What version of kmail are you using? (and what OS version?)

Searching bugs.kde.org for bugs related to html in kmail2, I see a couple bugs submitted which you might be running into:

https://bugs.kde.org/show_bug.cgi?id=366002
https://bugs.kde.org/show_bug.cgi?id=363027

There may be others as well, as I remember having run into this (or similar) a couple years ago and had found other similar bug reports.

I use 5.2.3 on KDE 5.8.2 in SolydK 9-EE (testing version based on Debian testing)

Your last line is what is so disturbing: a couple of years ago. It sounds to me as if the KDE dev only make new things and don't take care of what they have made once it is "finished". There are still so many problems in KDE4, still they make 5 and stop worrying about 4. If the problem existed a couple of years ago already why nobody took care of it? If you want to have something good then you need to take care of it, not put it aside and start something new, taking with you the errors of the past. Right?

Nobody who knows what to do to make Kmail accept and remember the setting for HTML mail?
I read it is a problem which existed some years ago already, there still seems to be no cure for it.