Hello Markus!
MG> I made a few tests with Günther Eisele and we have come to the
MG> conclusion that the Bat also encrypts the headers of S/MIME mails. We
MG> observed that once an encrypted message is decrypted certain headers
MG> appear twice. The headers that appear are the ones that the Bat usually
MG> generates before sending out a message.
This did only occur if the compression in S/MIME was turned on.
We've just fixed the bug and you will see in in a new version.
--
Maxim Masiutin
Vice President, Ritlabs S.R.L.
http://www.ritlabs.com/
S/MIME Cryptographic Signature
