(un)intended anonymity feature of gmail

Unless I'm missing something obvious, it seems impossible to divine the origination IP address from gmail-sourced e-mail headers. The first IP (the last header) has 10.*.*.* form and is of course internal to google. This is not the case with any other e-mail service I know of (mixmaster excluded), the real originating IP is always included. So the recipient of gmail message has no way of determining what the sender's real IP is. ===== end (of original message) Y-a*h*o-o (yes, they scan for this) spam follows: _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com