From owner-freebsd-questions@FreeBSD.ORG Mon Jul 16 09:48:01 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 2B25E16A401 for ; Mon, 16 Jul 2007 09:48:01 +0000 (UTC) (envelope-from freebsd@meijome.net) Received: from sigma.octantis.com.au (ns2.octantis.com.au [207.44.189.124]) by mx1.freebsd.org (Postfix) with ESMTP id EABC313C4A7 for ; Mon, 16 Jul 2007 09:48:00 +0000 (UTC) (envelope-from freebsd@meijome.net) Received: (qmail 10533 invoked from network); 16 Jul 2007 04:48:00 -0500 Received: from 203-158-59-146.dyn.iinet.net.au (HELO localhost) (203.158.59.146) by sigma.octantis.com.au with (DHE-RSA-AES256-SHA encrypted) SMTP; 16 Jul 2007 04:48:00 -0500 Date: Mon, 16 Jul 2007 19:47:57 +1000 From: Norberto Meijome To: gahn Message-ID: <20070716194757.31b926ab@localhost> In-Reply-To: <195697.81068.qm@web52111.mail.re2.yahoo.com> References: <20070715161915.5178f28d@localhost> <195697.81068.qm@web52111.mail.re2.yahoo.com> X-Mailer: Claws Mail 2.10.0 (GTK+ 2.10.13; i386-portbld-freebsd6.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: FreeBSD Questions ML Subject: Re: email's time stamp X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 Jul 2007 09:48:01 -0000 On Mon, 16 Jul 2007 00:31:33 -0700 (PDT) gahn wrote: > thanks, Norberto: Hi, please keep the list in your replies. and please do not top post. (fixed in this reply) > --- Norberto Meijome wrote: > > > On Sat, 14 Jul 2007 22:20:51 -0700 (PDT) > > gahn wrote: > > > > > hello: > > > > > > trying to understand the email's time stamps. how > > do i > > > determine the time stamps on those emails i > > received? > > > are those emails time stamped by the mail servers > > > originated those mails (in that particular time > > zone)? > > > or by the last mail relay server (in another time > > > zone) delivering those mails? > > > > > > say some mails originated from one server is in > > asia > > > and final destination mail relay is in europe. so > > the > > > time stamps on those mails are in that particular > > asia > > > time zone or in the time zone of europe time zone? > > > > Check the headers of the mail in question, in > > particular 'Received:'. . basically, each mail hop > > will timestamp the email with its own headers, > > written in a standard format which includes the > > timezone. I am not certain whether it's always the > > local timezone that is added, but it is irrelevant. [...] > > > > The actual "date sent" seen in your mail client is > > determined (very blindly) by the Date: header in the > > mail content, added usually by the senders' mail > > software > so the information is lost for web mails, right? I don't know - see if you have a 'view headers' or 'view source' option in your favourite webmail client. the mail isn't a 'web mail'. there is nothing special about it, other than it's viewed / rendered / shown in your computer via a webpage. Whether yahoo/gmail/hotmail systems get rid of (certain) headers when they store the email, i don't know. > for > example, on yahoo or gmail, i only see "date", what > does this "date" indicate? As above, is the date header ('Date:' ) added at the time of sending by the sending party. Trivial to forge ( have you ever received an email , from spammers or clock-deprived people that was sent in 1980? or 2015 ? :) ) > the date and time the mail > client sent out the mails or the date and time the > first mail server received the mails? The former, assuming it hasn't been tampered with. B _________________________ {Beto|Norberto|Numard} Meijome "Too strong a strong vision can kill you - you'll walk right over the edge, firm in the knowledge of the path in front of you." Linus Torvalds I speak for myself, not my employer. Contents may be hot. Slippery when wet. Reading disclaimers makes you go blind. Writing them is worse. You have been Warned.