Kmail problem with certificates

[moritz]

I have a problem with kmail:
Coz the certificate of my server isn't signed correctly I have to approve that I want to connect etc. It doesn't matter if I click on "forever", kmail will ask me about the certificate again after the next reboot. It's the same for sending mails. Is it just that my definition of "forever" is different from kmails?

[moritz]

I deleted all configs etc and then it worked again for a couple of reboots. No it's back to the state described before. Does no one have an idea or a hint?

[moritz]

Does no one have an idea?