On 28 Jun 2007 at 23:29, Harold Fuchs wrote: > [EMAIL PROTECTED] wrote: > > This is a usage of the Users list question: > > I've noticed people forwarding threads to unsubscribed original posters. > > What > > is the indiciation that someone is subscribed/unsubscribed? The > > presence/absence of the "To unsubscribe, email:..." blurb at the bottom of > > the > > message? ... > The only reliable way to tell if the poster is un/subscribed is to look > at the "Delivered-To:" e-mail header. > If and only if there is a "Delivered-To: moderator for > [email protected]" header then the poster is *not* subscribed. Parse > that carefully ;-) The converse is true too: if and only if there is no > "Delivered-To: moderator for [email protected]" then the poster is > subscribed.
Unless one is getting the digest form of the list, in which case all bets are off as far as I can tell, and there's no way of telling. Eg the complete headers for HF's mail within the digest appear to be: Message-ID: <[EMAIL PROTECTED]> Date: Thu, 28 Jun 2007 23:29:37 +0100 From: Harold Fuchs <[EMAIL PROTECTED]> Reply-To: [email protected] MIME-Version: 1.0 To: [email protected] Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [users] Unsubscribed OPs -- various incoming sites blocked because of spam; see http://www.scottsonline.org.uk for a list and openpgp crypto key (key fingerprint 2ACC 9F21 5103 F68C 7C32 9EA8 C949 81E1 31C9 1364) [EMAIL PROTECTED] Mike Scott, Harlow, Essex, England --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
