Zitat von Tomasz Chmielewski <man...@wpkg.org>:
Is it somehow possible to make Postfix add a digital signature to outgoing emails?Most likely Postfix itself can't do it, but maybe there is some filter (similar to amavis, or dkimproxy) which can be used with Postfix, which lets digitally sign email (i.e. if From: is X1, sign with key K1)?
If you intend to use digital signatures according to X509 PKI have a look at http://www.postfix.org/addon.html#security-gateway. We use Djigzo and it is works as expected with many useful features like policy based signing/encryption and the like.
Regards Andreas
smime.p7s
Description: S/MIME Cryptographic Signature
