Hello, my Postfix server is running as a VM in a hosted (untrusted) environment. In theory, the data on the server (i.e. my emails) could be on some backup tape, or copies could be lying around in the datacenter.
Some of my emails are encrypted (people send me encrypted emails) but most are not. Would it be possible / what would be the best way to set up some filter in Postfix, so that all plaintext emails would be encrypted upon delivery with my gpg public key. In effect, if would like like all people send me encrypted emails. What would be the best way to achieve this ?
