On Wed, Feb 24, 2010 at 09:27:42PM -0700, Michael Torrie wrote: > > Note that I sent this from my BYU departmental file server and it > reports TLS encryption from my client to the server, and then from my > first server to my second server with TLS, but as phantom doesn't accept > TLS connections from other mail servers, the last hop (on byu's network) > was in the clear. If phantom had supported TLS on port 25, my server > could have sent the message to it encrypted the entire way.
It looks like Postfix doesn't add anything to the Received header about TLS. I verified with Wireshark that my system is encrypting traffic on the first hop with TLS, but there's nothing in the Received header about it. It would be nice if Postfix added this information to the mail headers, but since it doesn't there doesn't seem to be any easy way to tell whether SMTP traffic is encrypted. -- Andrew McNabb http://www.mcnabbs.org/andrew/ PGP Fingerprint: 8A17 B57C 6879 1863 DE55 8012 AB4D 6098 8826 6868 -------------------- BYU Unix Users Group http://uug.byu.edu/ The opinions expressed in this message are the responsibility of their author. They are not endorsed by BYU, the BYU CS Department or BYU-UUG. ___________________________________________________________________ List Info (unsubscribe here): http://uug.byu.edu/mailman/listinfo/uug-list
