In KDE4.5.1 this bug does not exist.
Getting an E-Mail with a key, import the key to Kgpg, not signing or trusting, Answering the mail it will automatically be encrypted.
When trying to send this mail an additionally warning about untrusted key is shown -> http://media.cdn.ubuntu-de.org/forum/attachments/2620419/kmail_warnung.png
In KDE4.5.1 this bug does not exist.
Getting an E-Mail with a key, import the key to Kgpg, not signing or trusting, Answering the mail it will automatically be encrypted.
When trying to send this mail an additionally warning about untrusted key is shown -> http:// media.cdn. ubuntu- de.org/ forum/attachmen ts/2620419/ kmail_warnung. png