On 06/01/11 20:06, IT geek 31 wrote: > I am talking about the mail content, and I'm using S/MIME. > > Yes, I'm sure the accountant will never send me unencrypted mail. > > Thanks, > > > > On 6 January 2011 14:25, Ansgar Wiechers <li...@planetcobalt.net> wrote: >> On 2011-01-06 IT geek 31 wrote: >>> My accountant and I both have digital certificates and most of the >>> time encrypt our mails. But he often forgets, meaning sensitive >>> information is sent in plaintext. >>> >>> Is there any way to instruct Postfix to reject his mail unless it is >>> encrypted?
As soon as the unencrypted e-mail is sent by the accountant, your sensitive information might already be sniffed, somewhere between the MUA/MTA of your account and the MTA you control. You could use a setup like this to teach your accountant better manners, but your information is out on streets none the less. Seems like you are solving the wrong problem here. -- Regards, Tom
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