Oh, i see. Opaque Signing is really bad for us...
Are there any other clients doing this kind of signing?
Afaik only Microsoft products (Outlook and Outlook express). I don't
know why they do this because it even makes the complete message bigger
(because of the base64 encoding). Outlook and Outlook express will clear
sign the message when you only sign the massage. I think their thinking
was that if you are able to decrypt you are able to read an opaque
The upcoming release of Djigzo will allow you to remove the signature
from a message. This would convert the opaque signed message to a normal
readable message. What I can add is an option that when checked it will
removed the signature from the message if the message is opaque signed.
Of course you would then loose the possibility of checking the signature.
Djigzo open source email encryption