On Sat, 21 Jan 95 22:12 EST Matthew Ghio wrote:
Well, to obscure the origin of your outgoing mail, you could simply forward via another remailer. However, delivering directly to SMTP port 25 would probably be a good idea. Sendmail has an option to set the from using -f, but you have to have it configured to allow it. Normally only root, uucp and daemon are allowed to use this option.
This still won't quite do it. Clever mailers on the other end of the connection (sendmail included) will do a name lookup based on the IP address. This will (usually) return the systems canonical name, and sendmail will make sure to stick that in the header. In fact, if identd is running on the sending system, it will even stick in the userid of the sender. The fix involves changing the in-addr.arpa domain tables for that ip address to make it report another name. This will take complicity on the part of whoever manages those tables, and will complicate things when dealing with hosts on the remailers local network. A good way to work around this would be to slap another ethernet card in the machine so it has two addresses, one configured normally for that network and the other setup to be on remailer.net (or whatever.) Since this includes the cooperation of a local network administrator anyway, it makes most of the MX tricks a little less useful. -- Dan -- Dan Marner dmarner@mis.nu.edu Network Weasel Finger for PGP 2.6 key including the National University words "GMAAAEEAK", "god" and "JAAUR"