On Thu, 2005-04-07 at 10:42, David Hoffman wrote: > On Apr 6, 2005 11:06 PM, micheal <sundance@xxxxxxxxxxxxxxxx> wrote: > > Just for fun I wonder what would happen if two accounts with the same > > set up would e-mail each other, Would they challenge each other into > > oblivion? > > That would depend on which challenge/response system you are using. > TMDA won't do that because it injects an "X" header into the message, > and will check for the existence of that header before processing it. > So if you send a message from a TMDA enabled account to another TMDA > enabled account, the recipient will send a challenge message back to > you, but your TMDA is smart enough to know that it was a challenge > message and will not bounce another challenge back again. And it lets the "challenge" message go through? Seems like a spammer interested in reaching out to people using TMDA would then just add the appropriate X header to the spam message which should allow it to get through undetected. :) Seems like an easily circumscribed system. -- Scot L. Harris webid@xxxxxxxxxx Booze is the answer. I don't remember the question.
