[please set your word wrap to 75 or less, thank you]

On Fri, 10 Jan 2003 08:34:51 -0600 R Hannes Beinert <[EMAIL PROTECTED]> wrote:

RHB> In other words, it sounds as though one could not implement a filter
RHB> within M which caused M to invoke a program "X" when an email was
RHB> encountered with a "To: Bob" in it, so that the program could perform
RHB> the modification?

 It's not currently possible to do this but it will be (and is, in fact,
trivial to do). However more likely than not this program won't be able to
modify the message because I don't think it's a good idea to do any message
processing in the MUA -- it's not its job.

RHB> There appear to be three different strategies, which depend upon the
RHB> user's threat model.
RHB> 
RHB> (1) The outgoing messages are encrypted only to the recipient, in
RHB> which the saved outgoing message will only serve to remind you that
RHB> such a message was sent at a given time/date.  If your computer is
RHB> ever compromised, encrypted emails are inaccessible to everyone,
RHB> except for the respective recipients.

 In this case we could probably even avoid saving the message body at all
as it would be of no use anyhow. Although maybe not: you could at least
resend it then to the same recipient.

RHB> (3) The outgoing email is saved as plaintext.  In this case, the
RHB> threat model assumes that one's computer will not be compromised.

 I don't think this is acceptable or desirable. If you use PGP there is
presumably a reason to do it and leaving mail in plain text almost
certainly goes against it.

RHB> It is with emails that fall into the option #2 category that a find
RHB> function would require a private key so that the plaintext would be
RHB> accessible for examination.

 Indeed.

 Regards,
VZ



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