On 10/8/07, Michael_google gmail_Gersten <[EMAIL PROTECTED]> wrote: > On 10/6/07, Chris Jacobs <[EMAIL PROTECTED]> wrote: > > When email is remailed via TOR is it possible to add a header with a > > contact address for complaints, > > like in cypherpunk remailers? > Hmm. Technically, yes. > To do so, you have to run a MITM node that intercepts traffic, looks > at it, decides to modify it, and then alters the traffic being sent > over it. > That's the sort of thing that I think is considered a "bad thing".
There are nodes with open port 25 outbound? I can't connect to port 25 via tor at the moment. The better way(tm) to do this would be to just run an open SMTP server as a hidden service, and run spam filtering, hashacash proof-of-work challenge, whatever anti-abuse stuff you want, along with header munging and striping, ... and advertise this server for people to set their SMTP out to... Then you don't have to feel bad about running a MITM node, and you might manage to stay up for more than a few minutes before being used to spam and getting blocked by every mail server on the planet. ;) On this subject, it would be pretty interesting if the hidden node support supported a client proof-of-work with server specified difficulty in order to open a connection. If the SMTP server host were setup to only allow one mail per connection the server could have POW based abuse mitigation without special client software.
