Xref: utzoo comp.mail.sendmail:2841 comp.mail.misc:5036 Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!uunet!math.fu-berlin.de!uniol!unido!rwthinf!marvin.e17.physik.tu-muenchen.de!berg From: berg@marvin.e17.physik.tu-muenchen.de (Stephen R. van den Berg) Newsgroups: comp.mail.sendmail,comp.mail.misc Subject: Different mail header format? Message-ID: <4146@rwthinf.UUCP> Date: 13 Mar 91 14:12:00 GMT Sender: news@rwthinf.UUCP Followup-To: comp.mail.sendmail Lines: 25 Could it be that some mailers (notably in the UK) strip the "From " line, or don't add a "From " line? And if so, could it be that they use some other method to authenticate the mail, like: From: Real Name instead of the usual: From Authenticated_user_name Date And what happens if sendmail receives a message without a "From " line. Does it append one itself? What username and date does it use? And if sendmail doesn't add any "From " line, what does /bin/mail (the normal mail delivery program) do with it? Does it append the "From " line? What username and date does it use? Does it parse the <...>? Inquiring minds want to know. Thanks. -- Sincerely, berg@marvin.e17.physik.tu-muenchen.de Stephen R. van den Berg. "I code it in 5 min, optimize it in 90 min, because it's so well optimized: it runs in only 5 min. Actually, most of the time I optimize programs."