At 1:41 PM +0200 2003/10/15, hadmut@danisch.de wrote:
I see. Would you mind if I use "From: bortzmeyer@nic.fr" when I am at home?
You can use whatever you want. There's nothing anyone can do to stop you. Moreover, the header "From:" is totally unrelated to the envelope sender address, and there's nothing in your proposal, or any similar proposal, that could successfully keep clever people from doing this sort of stuff anyway. Of course, keep in mind that recent viruses have used legitimate local e-mail addresses to send copies of themselves to people in that person's address book. You certainly shouldn't be able to prevent him from being able to use "From: bortzmeyer@nic.fr" when it's his own machine sending mail from his own MUA, assuming he were vulnerable to this sort of thing. -- Brad Knowles, <brad.knowles@skynet.be> "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." -Benjamin Franklin, Historical Review of Pennsylvania. GCS/IT d+(-) s:+(++)>: a C++(+++)$ UMBSHI++++$ P+>++ L+ !E-(---) W+++(--) N+ !w--- O- M++ V PS++(+++) PE- Y+(++) PGP>+++ t+(+++) 5++(+++) X++(+++) R+(+++) tv+(+++) b+(++++) DI+(++++) D+(++) G+(++++) e++>++++ h--- r---(+++)* z(+++)