>> 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 > >
I think you've nailed it there Tom - I'm trying to teach better etiquette. Ideally I'd like a plugin for his mail client (Outlook) that automatically detects the recipient (me) and encrypts the mail, but I have been unavailable to find one. Either way, this would be a handy thing to have.