Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!tut.cis.ohio-state.edu!att!pacbell.com!ucsd!brian From: brian@ucsd.Edu (Brian Kantor) Newsgroups: comp.mail.misc Subject: Re: Which headers may Sendmail re-write? Message-ID: <25250@ucsd.Edu> Date: 22 Dec 90 16:03:22 GMT References: <1990Dec19.154652.11573@sceard.Sceard.COM> <25215@ucsd.Edu> <151@blars> Organization: The Avant-Garde of the Now, Ltd. Lines: 18 In article <151@blars> blarson@blars writes: >Therefore breaking any mail message that purposly put a differnt >evalope "From" (actually return) address. Mailing lists ... True (more or less), except that there is no capability in UUCP to have two addresses - there is only ONE from address, and that's the "remote from" line at the front of the message. Remember that a uucp site may ignore, correctly update, or hopelessly damage the From: line in mail headers (since it's not part of the transport spec), whereas the "remote from" is going to be correct. We don't fiddle RFC821 (SMTP) messages that way. The two-address scheme works just fine there. And we use it for all the many mailing lists we host here. BTW, why doesn't the From: line in your posting have a domain? "blarson@blars" isn't replyable from outside yours, you know. - Brian