Q: Kolab and Mac OS X?

[Del]

> - I use a server with a custom certificate.  Kontact complains that it cannot verify it, but even if I click "accept forever", it asks again *every* time I sync mails or try to send a message.  How can I install my CA chain in kontact?
> - Although I use a German Mac OS 10.4, kontact comes up in English.

As I informed you above, Tiger is a no-go (an there is as far as I
know no effort to make it work). Your certificate issue will vanish
once you upgrade to Leopard or Snow Leopard. Be sure to have Leopard
up-to-date or you will experience the certificate issue again.

Cheers,
Del