Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail From: Random832 Newsgroups: comp.lang.python Subject: Re: Threading is foobared? Date: Thu, 31 Mar 2016 01:30:04 -0400 Lines: 12 Message-ID: References: <56F7B5FA.4040002@timgolden.me.uk> <56FCACAE.3060405@msapiro.net> <1459401951.1771032.564341266.6995438B@webmail.messagingengine.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Trace: news.uni-berlin.de LG1HTORlAlJV4fp5ulgTXgGEservK5o/LkzdqyZMQtjw== Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.005 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'discard': 0.05; 'received:internal': 0.09; 'mailman': 0.10; 'appropriate': 0.14; 'headers': 0.15; 'thu,': 0.15; 'message- id:@webmail.messagingengine.com': 0.16; 'received:10.202': 0.16; 'received:10.202.2': 0.16; 'received:10.202.2.212': 0.16; 'received:66.111': 0.16; 'received:66.111.4': 0.16; 'received:io': 0.16; 'received:messagingengine.com': 0.16; 'received:psf.io': 0.16; 'rewritten': 0.16; 'usenet': 0.16; 'wrote:': 0.16; 'detect': 0.18; 'duplicate': 0.18; 'instance,': 0.18; '31,': 0.22; 'gateway': 0.22; 'header:In-Reply-To:1': 0.24; 'unique,': 0.29; 'posts': 0.30; 'post': 0.31; 'problem': 0.33; 'server': 0.34; 'lists': 0.34; '(and': 0.36; 'to:addr:python-list': 0.36; 'subject:?': 0.36; 'subject:: ': 0.37; 'received:10': 0.37; 'two': 0.37; 'missing': 0.37; 'received:66': 0.38; "didn't": 0.39; 'to:addr:python.org': 0.40; 'header:Message-Id:1': 0.61; 'mar': 0.65; 'news': 0.68; 'groups.': 0.72; 'emails,': 0.72; 'subscribers)': 0.84; 'outgoing': 0.91 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=fastmail.com; h= content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-sasl-enc :x-sasl-enc; s=mesmtp; bh=2O7PXMjDvQUgq1DPcGqnPWX4u0E=; b=2AbK7r B5ebWiDNLOtNX80+X7/OP0ScZ1vDZMlS9cd6zqU09CjJwVcjWqIJqYQjr0TJTzqe c66/H3LjFZyoRE9O6YLlniPPKuhuHm+wcig8XnCeg4ud4q0nCmT1Jv+HEVVsyY6i fTyuifp822xB6rAI0s8IhhTTH/IJB+KJqO5to= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-sasl-enc:x-sasl-enc; s=smtpout; bh=2O7PXMjDvQUgq1D PcGqnPWX4u0E=; b=LPqTdqJpTtnEIFp5gQs29U+iGdSHV3R67sHvTSlK1TAsEvw jieLMlC5SvS3H/dv4LFK6iEAR2VbTZETL78FSN2lZgeYKs59XXXoO22Z7O1RXakk GTdwV0wnxDcnZ9/+PLvuWmHz86626feBLgpEetog5vTVpx9hS4kra3n3iENY= X-Sasl-Enc: LRmSkQR36Zk34Fltqk4868pVFrG/9NSqwad2CCs47uIp 1459402204 X-Mailer: MessagingEngine.com Webmail Interface - ajax-9aaf2efb In-Reply-To: <1459401951.1771032.564341266.6995438B@webmail.messagingengine.com> X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com comp.lang.python:106126 On Thu, Mar 31, 2016, at 01:25, Random832 wrote: > > if a message is cross-posted to two lists which both gateway to Usenet, > > and Mailman didn't make the Message-IDs unique, the news server would > > discard one of the two posts as a duplicate and the post would be > > missing from one of the recipient Usenet groups. One additional thing that would be nice and would solve most of the duplicate problem with hypothetically including the rewritten Message-IDs in outgoing emails, would be to detect crossposts to multiple lists in the same Mailman instance, and to send them to Usenet (and to subscribers) as a single message, with appropriate headers for a crosspost.