On Apr 28, 2006, at 11:41 PM,
Niko.Thome@... wrote:
> I've a question: I'm looking for a solution, which signs&crypts all
> outgoing mails of a company. The solution should support gpg and s/mime
> encryption.
Well, that's Anubis :-) But you have to think very carefully about
*how* you change messages. If there's a 40Mb attachment, do you crypt
and sign that? If the outgoing message is plaintext, do you convert it
to MIME so you can include a signature, or do you sign the plaintext?
And, which scheme do you use for signing? Is it dependant on the
recipient, the sender, or the content?
> It should even decrypt and verify incoming e-mails. In one
> word: It should act as an e-mail gateway!
It's not traditional to use Anubis for incoming email; perhaps you
could use it in between the external MTA and the internal one; but I
expect this would be a different invocation/daemon to the outgoing one.
It's easy to have multiple daemons and difficult to set only one up for
everything.
-jim
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