From CALLER@bloggs.com Tue Mar 02 09:44:33 1999 Authentication-Results: test.ex; iprev=pass (localhost); arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=127.0.0.1 Received: from localhost ([127.0.0.1] helo=test.ex) by test.ex with esmtp (Exim x.yz) (envelope-from ) id 10HmaY-0005vi-00 for a@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 ARC-Seal: i=1; cv=none; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; b=XLcAAITo9Vf1e7bfAAZQGHFU1YySleXuf5+r2KI9kYNg8hmFsv6p91L679/gYfo7XGzo6pl9Xh +CXJIttJnXkgGx+zRg4hRoAqr3VNqDYA/IDvvglQCdBVu2/4JS1cPCznuW6RdTLR6b7kMx11Cu jd3NsmP38X0Zo8mRETF+TLU=; ARC-Authentication-Results: i=1; test.ex; arc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; bh=HUzfKKxIjPIa07lkj5uzDQ3q5YTRF/NwAUE7dhrrfvs=; h=Subject; b=CbJ1YQLNAWyRqMXq9y0WN10HlKn8Ylu+sVGztkUklgxaqQJCVKUiS7dZaKCBA0B7UqesGogzb5 y1aeJRCnWnUSL1gKXCjalHTp9XuWxGjd5cARh0AN/nmkXOFkgcIan7o4vB3UBF/T3NwLdewza+ caLY3oRoBpLwh0IBzibHKl0=; Authentication-Results: test.ex; arc=none Received: from [127.0.0.1] (helo=xxx) by test.ex with smtp (Exim x.yz) (envelope-from ) id 10HmaX-0005vi-00 for za@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 Subject: Test This is a test body. From CALLER@bloggs.com Tue Mar 02 09:44:33 1999 Authentication-Results: test.ex; iprev=pass (localhost); arc=pass (i=2) header.s=sel arc.oldest-pass=2 smtp.client-ip=127.0.0.1 Received: from localhost ([127.0.0.1] helo=test.ex) by test.ex with esmtp (Exim x.yz) (envelope-from ) id 10HmbB-0005vi-00 for a@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 ARC-Seal: i=2; cv=pass; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; b=p0S5hu7O1X0QEtH5WHBKTSlksX8Q09cpDll3kZxgLv8bcq4aAVc+hk2ajkzlwplg3ArBTSx79R D4CB+BB3x5p4oB+VwgVSS+Fz/EFFxgEht4xKqPFJ/Xqi3SFdy0+vxdZ6d0z7sOE6pchlxooFhH QMpkkGVVGT+uT4MqnexuTjY=; ARC-Authentication-Results: i=2; test.ex; iprev=pass (localhost); arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=127.0.0.1 ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; bh=HUzfKKxIjPIa07lkj5uzDQ3q5YTRF/NwAUE7dhrrfvs=; h=Subject; b=T2xYov0qVT77eX6s3g2M3CB4ulYuxbD0o+iTCpfB/40nZTzl5LdIVEyk2ph/ijyqY2PJTpBjjt iTHoJ4CBtVAkDwq75Wj+lh1OfrArWJatMyimkMwxX6b54KcXldIwB+7w6Tn3D9/sydBEduL82C p1kh+Bb/X0QGczb0CzdXwhM=; Authentication-Results: test.ex; iprev=pass (localhost); arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=127.0.0.1 Received: from localhost ([127.0.0.1] helo=test.ex) by test.ex with esmtp (Exim x.yz) (envelope-from ) id 10HmbA-0005vi-00 for za@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 ARC-Seal: i=1; cv=none; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; b=XLcAAITo9Vf1e7bfAAZQGHFU1YySleXuf5+r2KI9kYNg8hmFsv6p91L679/gYfo7XGzo6pl9Xh +CXJIttJnXkgGx+zRg4hRoAqr3VNqDYA/IDvvglQCdBVu2/4JS1cPCznuW6RdTLR6b7kMx11Cu jd3NsmP38X0Zo8mRETF+TLU=; ARC-Authentication-Results: i=1; test.ex; arc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; bh=HUzfKKxIjPIa07lkj5uzDQ3q5YTRF/NwAUE7dhrrfvs=; h=Subject; b=CbJ1YQLNAWyRqMXq9y0WN10HlKn8Ylu+sVGztkUklgxaqQJCVKUiS7dZaKCBA0B7UqesGogzb5 y1aeJRCnWnUSL1gKXCjalHTp9XuWxGjd5cARh0AN/nmkXOFkgcIan7o4vB3UBF/T3NwLdewza+ caLY3oRoBpLwh0IBzibHKl0=; Authentication-Results: test.ex; arc=none Received: from [127.0.0.1] (helo=xxx) by test.ex with smtp (Exim x.yz) (envelope-from ) id 10HmaZ-0005vi-00 for zza@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 Subject: Test This is a test body. From CALLER@bloggs.com Tue Mar 02 09:44:33 1999 Authentication-Results: test.ex; iprev=pass (localhost); arc=pass (i=3) header.s=sel arc.oldest-pass=0 smtp.client-ip=127.0.0.1 Received: from localhost ([127.0.0.1] helo=test.ex) by test.ex with esmtp (Exim x.yz) (envelope-from ) id 10HmbF-0005vi-00 for a@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 ARC-Seal: i=3; cv=pass; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; b=f9LBNUaiOCFYXDo/Qj0MeW9NwX4CszFtZjfvnjvlfDc6WM28bQyEqMQBWNt+vApDne+LPsLGW/ 28MQ4CQf6a3OZDtENt704sxqrwFPgaJhjNx79Yn5yWfqX6YFcTc/tI3DZzLMScUCPSfVGTsNwB J9vb4zPdN+QJ+viTsyMRQ4Y=; ARC-Authentication-Results: i=3; test.ex; iprev=pass (localhost); arc=pass (i=2) header.s=sel arc.oldest-pass=0 smtp.client-ip=127.0.0.1 ARC-Message-Signature: i=3; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; bh=31zA4VNQZ2yhHUh+7vWASIL9kKqo6pSym1QghgPyUkM=; h=Subject; b=Lf2jJs8SwbiYLrylYAOjQO4iIa+7tnGighj2gE5NWZj+SiJNQFgu+gHgkmA4xZc2meG58S7WPf nG6rkqTU/uqBRAbWaEHP1VYDss/x47a/GImRx89dR1P7ZTRLMGgk0AusbvtFDMsKvOTd8QeWLc DsScgtJ2MqYbikFuA0LxRIA=; Authentication-Results: test.ex; iprev=pass (localhost); arc=pass (i=2) header.s=sel arc.oldest-pass=0 smtp.client-ip=127.0.0.1 Received: from localhost ([127.0.0.1] helo=test.ex) by test.ex with esmtp (Exim x.yz) (envelope-from ) id 10HmbE-0005vi-00 for za@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 ARC-Seal: i=2; cv=pass; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; b=VFGK3ThSLHrT5Zn9w3dPive+GXVNu/sYyfb6i64d8GiAf0fAcD8cSqiQizsuABJIkJzcTfQEw/ g4ihDDhg3Mz3FgvWbsNbBfoDVy/PZ3xCp0XFEOh7joTr1N42yolOwt1BFbZw8CvKLv0x+p1Zhb ZIdrz8ZGocPUB2HB8m0h+NA=; ARC-Authentication-Results: i=2; test.ex; iprev=pass (localhost); arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=127.0.0.1 ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; bh=31zA4VNQZ2yhHUh+7vWASIL9kKqo6pSym1QghgPyUkM=; h=Subject; b=v3N5ukPvIJskEefYQVq9la9YvMbtrEETkzRVbExhcuf52gWH6PY6L8MWQr2BN4VZbWHPIfZN3S GMQ21ewl0ZaHC4bAzidgK7NsViw8cfKnJwkvSm4FejpBDto93vQ0Jn2dntbjGZeDSaFx8AuV0m oZRTJp3w8FnuMJ8Pl0bDLDM=; Authentication-Results: test.ex; iprev=pass (localhost); arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=127.0.0.1 Received: from localhost ([127.0.0.1] helo=test.ex) by test.ex with esmtp (Exim x.yz) (envelope-from ) id 10HmbD-0005vi-00 for mza@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 ARC-Seal: i=1; cv=none; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; b=XLcAAITo9Vf1e7bfAAZQGHFU1YySleXuf5+r2KI9kYNg8hmFsv6p91L679/gYfo7XGzo6pl9Xh +CXJIttJnXkgGx+zRg4hRoAqr3VNqDYA/IDvvglQCdBVu2/4JS1cPCznuW6RdTLR6b7kMx11Cu jd3NsmP38X0Zo8mRETF+TLU=; ARC-Authentication-Results: i=1; test.ex; arc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; bh=HUzfKKxIjPIa07lkj5uzDQ3q5YTRF/NwAUE7dhrrfvs=; h=Subject; b=CbJ1YQLNAWyRqMXq9y0WN10HlKn8Ylu+sVGztkUklgxaqQJCVKUiS7dZaKCBA0B7UqesGogzb5 y1aeJRCnWnUSL1gKXCjalHTp9XuWxGjd5cARh0AN/nmkXOFkgcIan7o4vB3UBF/T3NwLdewza+ caLY3oRoBpLwh0IBzibHKl0=; Authentication-Results: test.ex; arc=none Received: from [127.0.0.1] (helo=xxx) by test.ex with smtp (Exim x.yz) (envelope-from ) id 10HmbC-0005vi-00 for zmza@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 Subject: Test This is a test body. ----- This is a generic mailinglist footer ---- From CALLER@bloggs.com Tue Mar 02 09:44:33 1999 Authentication-Results: test.ex; iprev=pass (localhost); arc=fail (i=3) header.s=sel arc.oldest-pass=0 smtp.client-ip=127.0.0.1 Received: from localhost ([127.0.0.1] helo=test.ex) by test.ex with esmtp (Exim x.yz) (envelope-from ) id 10HmbK-0005vi-00 for a@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 ARC-Seal: i=3; cv=fail; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; b=TSTRZa5Pb1FTxQ2M5heDeAZTQ6mg/qETgzXrxUA9Aa9GkofMft7JnWyPuM5ZZm9f0BWydQUD24 omdjyXmK78wyfDoSDS1Zzau16bByabyDgb7tF3K5qMYTNEosX0aJskb6h/NqBRd5RMlhyt3OOK zGEfd5TI5pS16ghs9I6oB88=; ARC-Authentication-Results: i=3; test.ex; iprev=pass (localhost); arc=fail (i=2) header.s=sel arc.oldest-pass=0 smtp.client-ip=127.0.0.1 ARC-Message-Signature: i=3; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; bh=31zA4VNQZ2yhHUh+7vWASIL9kKqo6pSym1QghgPyUkM=; h=Subject; b=Lf2jJs8SwbiYLrylYAOjQO4iIa+7tnGighj2gE5NWZj+SiJNQFgu+gHgkmA4xZc2meG58S7WPf nG6rkqTU/uqBRAbWaEHP1VYDss/x47a/GImRx89dR1P7ZTRLMGgk0AusbvtFDMsKvOTd8QeWLc DsScgtJ2MqYbikFuA0LxRIA=; Authentication-Results: test.ex; iprev=pass (localhost); arc=fail (i=2) header.s=sel arc.oldest-pass=0 smtp.client-ip=127.0.0.1 Received: from localhost ([127.0.0.1] helo=test.ex) by test.ex with esmtp (Exim x.yz) (envelope-from ) id 10HmbJ-0005vi-00 for za@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 Authentication-Results: test.ex; iprev=pass (localhost); arc=pass (i=2) header.s=sel arc.oldest-pass=2 smtp.client-ip=127.0.0.1 Received: from localhost ([127.0.0.1] helo=test.ex) by test.ex with esmtp (Exim x.yz) (envelope-from ) id 10HmbI-0005vi-00 for mza@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 ARC-Seal: i=2; cv=pass; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; b=p0S5hu7O1X0QEtH5WHBKTSlksX8Q09cpDll3kZxgLv8bcq4aAVc+hk2ajkzlwplg3ArBTSx79R D4CB+BB3x5p4oB+VwgVSS+Fz/EFFxgEht4xKqPFJ/Xqi3SFdy0+vxdZ6d0z7sOE6pchlxooFhH QMpkkGVVGT+uT4MqnexuTjY=; ARC-Authentication-Results: i=2; test.ex; iprev=pass (localhost); arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=127.0.0.1 ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; bh=HUzfKKxIjPIa07lkj5uzDQ3q5YTRF/NwAUE7dhrrfvs=; h=Subject; b=T2xYov0qVT77eX6s3g2M3CB4ulYuxbD0o+iTCpfB/40nZTzl5LdIVEyk2ph/ijyqY2PJTpBjjt iTHoJ4CBtVAkDwq75Wj+lh1OfrArWJatMyimkMwxX6b54KcXldIwB+7w6Tn3D9/sydBEduL82C p1kh+Bb/X0QGczb0CzdXwhM=; Authentication-Results: test.ex; iprev=pass (localhost); arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=127.0.0.1 Received: from localhost ([127.0.0.1] helo=test.ex) by test.ex with esmtp (Exim x.yz) (envelope-from ) id 10HmbH-0005vi-00 for zmza@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 ARC-Seal: i=1; cv=none; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; b=XLcAAITo9Vf1e7bfAAZQGHFU1YySleXuf5+r2KI9kYNg8hmFsv6p91L679/gYfo7XGzo6pl9Xh +CXJIttJnXkgGx+zRg4hRoAqr3VNqDYA/IDvvglQCdBVu2/4JS1cPCznuW6RdTLR6b7kMx11Cu jd3NsmP38X0Zo8mRETF+TLU=; ARC-Authentication-Results: i=1; test.ex; arc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; bh=HUzfKKxIjPIa07lkj5uzDQ3q5YTRF/NwAUE7dhrrfvs=; h=Subject; b=CbJ1YQLNAWyRqMXq9y0WN10HlKn8Ylu+sVGztkUklgxaqQJCVKUiS7dZaKCBA0B7UqesGogzb5 y1aeJRCnWnUSL1gKXCjalHTp9XuWxGjd5cARh0AN/nmkXOFkgcIan7o4vB3UBF/T3NwLdewza+ caLY3oRoBpLwh0IBzibHKl0=; Authentication-Results: test.ex; arc=none Received: from [127.0.0.1] (helo=xxx) by test.ex with smtp (Exim x.yz) (envelope-from ) id 10HmbG-0005vi-00 for zzmza@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 Subject: Test This is a test body. ----- This is a generic mailinglist footer ---- From CALLER@bloggs.com Tue Mar 02 09:44:33 1999 Authentication-Results: test.ex; iprev=pass (localhost); arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=127.0.0.1 Received: from localhost ([127.0.0.1] helo=test.ex) by test.ex with esmtp (Exim x.yz) (envelope-from ) id 10HmbN-0005vi-00 for a@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 Authentication-Results: test.ex; iprev=pass (localhost); arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=127.0.0.1 Received: from localhost ([127.0.0.1] helo=test.ex) by test.ex with esmtp (Exim x.yz) (envelope-from ) id 10HmbM-0005vi-00 for za@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 ARC-Seal: i=1; cv=none; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; b=XLcAAITo9Vf1e7bfAAZQGHFU1YySleXuf5+r2KI9kYNg8hmFsv6p91L679/gYfo7XGzo6pl9Xh +CXJIttJnXkgGx+zRg4hRoAqr3VNqDYA/IDvvglQCdBVu2/4JS1cPCznuW6RdTLR6b7kMx11Cu jd3NsmP38X0Zo8mRETF+TLU=; ARC-Authentication-Results: i=1; test.ex; arc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; bh=HUzfKKxIjPIa07lkj5uzDQ3q5YTRF/NwAUE7dhrrfvs=; h=Subject; b=CbJ1YQLNAWyRqMXq9y0WN10HlKn8Ylu+sVGztkUklgxaqQJCVKUiS7dZaKCBA0B7UqesGogzb5 y1aeJRCnWnUSL1gKXCjalHTp9XuWxGjd5cARh0AN/nmkXOFkgcIan7o4vB3UBF/T3NwLdewza+ caLY3oRoBpLwh0IBzibHKl0=; Authentication-Results: test.ex; arc=none Received: from [127.0.0.1] (helo=xxx) by test.ex with smtp (Exim x.yz) (envelope-from ) id 10HmbL-0005vi-00 for zza@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 Subject: Test This is a test body. From CALLER@bloggs.com Tue Mar 02 09:44:33 1999 Authentication-Results: test.ex; iprev=pass (localhost); dkim=pass header.d=dmarc.org header.s=clochette header.a=rsa-sha256; dkim=fail (body hash mismatch; body probably modified in transit) header.d=convivian.com header.s=default header.a=rsa-sha256; arc=fail (i=2) header.s=sel arc.oldest-pass=0 smtp.client-ip=127.0.0.1 Received: from localhost ([127.0.0.1] helo=test.ex) by test.ex with esmtp (Exim x.yz) (envelope-from ) id 10HmbP-0005vi-00 for a@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 ARC-Seal: i=2; cv=fail; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; b=kyA9Jr7oTw0RjbIMJuRSDVS34QV/o7rR2vk8j9OoOrJCc4SGYoFdnwOPuZ0xnJ7PC6VBYqFuaF 0roSJ1UkJk7NJLjfw4UXF1gF01z+EBahwpYpLE1K7+wuejYBiu83ksxeNbMaejGCZGXRgTrx4N r8h8iR9p7dSbp6/B7CxxoSg=; ARC-Authentication-Results: i=2; test.ex; dkim=pass header.d=dmarc.org header.s=clochette header.a=rsa-sha256; dkim=fail (body hash mismatch; body probably modified in transit) header.d=convivian.com header.s=default header.a=rsa-sha256; arc=fail (i=1) header.s=default arc.oldest-pass=0 smtp.client-ip=127.0.0.1 ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed; d=test.ex; s=sel; bh=DXU/xKzzQYeoYB254nZ0AzNm7z2YZ//FpTnhgIjPyt8=; h=Sender:Content-Type:Reply-To:From:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Subject:Cc:MIME-Version:References: In-Reply-To:Message-ID:To:Date:DKIM-Signature:DKIM-Signature; b=ZDh/1Pns8xp2aOFUIDqAIU8rNK+Wx+xBtsUqn+P8an0dPJIja0AexTNoPagabvXjNzT86Uf6dm 6gO1oFpzn63XNNaRJSrUDOMLe3pe5D8IS/0AFlqU9iwyDjmZqsnc8VnxXMgkDvEhrF5e1Mj9E+ Rw80B9DQMRhl1Va7HMZsLlI=; Authentication-Results: test.ex; dkim=pass header.d=dmarc.org header.s=clochette header.a=rsa-sha256; dkim=fail (body hash mismatch; body probably modified in transit) header.d=convivian.com header.s=default header.a=rsa-sha256; arc=fail (i=1) header.s=default arc.oldest-pass=0 smtp.client-ip=127.0.0.1 Received: from [127.0.0.1] (helo=xxx) by test.ex with smtp (Exim x.yz) (envelope-from ) id 10HmbO-0005vi-00 for za@test.ex; Tue, 2 Mar 1999 09:44:33 +0000 Received: from dragon.trusteddomain.org (localhost [127.0.0.1]) by dragon.trusteddomain.org (8.14.5/8.14.5) with ESMTP id w121YG2q036577; Tue, 2 Mar 1999 09:44:33 +0000 (PST) (envelope-from arc-discuss-bounces@dmarc.org) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=dmarc.org; s=clochette; t=1517535263; bh=DXU/xKzzQYeoYB254nZ0AzNm7z2YZ//FpTnhgIjPyt8=; h=Date:To:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To; b=Z66qes0GxyXtv0ow232KSy/b44fPNLZL8JOXHiJLi9dHzIPyxsQd/Zb5NP8i3427g a9tEyo8Rpz8DPbn351e+IlYqRGLfokTWgX+7NfMLy87p3SfnPytUu6PM8QiW2VC889 Tk0K+5xH5KSgkENaPdLBigHtunyNZaSofgKy5vBM= Authentication-Results: dragon.trusteddomain.org; sender-id=fail (NotPermitted) header.sender=arc-discuss-bounces@dmarc.org; spf=fail (NotPermitted) smtp.mfrom=arc-discuss-bounces@dmarc.org Received: from mailhub.convivian.com (mailhub.convivian.com [72.5.31.108]) by dragon.trusteddomain.org (8.14.5/8.14.5) with ESMTP id w121YEt6036571 for ; Tue, 2 Mar 1999 09:44:33 +0000 (PST) (envelope-from jered@convivian.com) Authentication-Results: dragon.trusteddomain.org; dkim=pass reason="1024-bit key" header.d=convivian.com header.i=@convivian.com header.b=LHXEAl5e; dkim-adsp=pass Authentication-Results: dragon.trusteddomain.org; sender-id=pass header.from=jered@convivian.com; spf=pass smtp.mfrom=jered@convivian.com Received: from zimbra8.internal.convivian.com (zimbra8.internal.convivian.com [172.16.0.5]) by mailhub.convivian.com (Postfix) with ESMTP id 471DA66FB6; Thu, 1 Feb 2018 20:34:08 -0500 (EST) ARC-Seal: i=1; a=rsa-sha256; d=convivian.com; s=default; t=1517535248; cv=none; b=HkK4AhtPFBUHtRUKKzTON3wyMj7ZLq881P2qhWg+lO8Y50V9SEc8lJ4dBIM3cj3ftfAbooPSLHAVejA89bpS1eAvODci6pOPaQWkBZmpdu+yPIxqX3FyOaCdIaZFbXaMQ1Jg5Sraf5mkCESmfjR5bCguAaZsnPQDF6wSN8VhbQk= ARC-Message-Signature: i=1; a=rsa-sha256; d=convivian.com; s=default; t=1517535248; c=relaxed/simple; bh=9Cp8KoxNPc7FEuC29xB5bNWWadzdEFhXrX/8i+vd3g4=; h=DKIM-Signature:Date:From:To:Cc:Message-ID:In-Reply-To:References: Subject:MIME-Version:Content-Type:X-Originating-IP:X-Mailer: Thread-Topic:Thread-Index:From; b=jG+KnBrP2oq1z1upStMoWbM1fkS5zbUiir221Gy6h7ao5oy7Qc3m0pXgrSdhgGD4oX/kk2seEt2WAlPNwEsZyvYeG/80ctd/2+hwaVQ6JSOU83Rdd8im8HwMvXzXZIz8ATjPpOv21+xMrqlPSkD/l6X4VP+AAoVVkhW7f4GWcws= ARC-Authentication-Results: i=1; mailhub.convivian.com; none DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=convivian.com; s=default; t=1517535248; bh=9Cp8KoxNPc7FEuC29xB5bNWWadzdEFhXrX/8i+vd3g4=; h=Date:From:To:Cc:In-Reply-To:References:Subject:From; b=LHXEAl5elmfkdXNdK24QonXpkiG38neuJoS7fSQXwZVZkR+cdYNr6eBxx3DF4reJO NgzV5GFyPX6+LdIqR6rnC8BXhjvJq+pxLW3/wKx39W3ANYWRFm1dgyWBz99NxNNvk/ ruQkYYBBk9GPM52EyHNMvHciRAyaSk+VluGj6c6M= Date: Tue, 2 Mar 1999 09:44:33 +0000 (EST) To: Brandon Long Message-ID: <1426665656.110316.1517535248039.JavaMail.zimbra@convivian.com> In-Reply-To: References: <29030059.107105.1517497494557.JavaMail.zimbra@convivian.com> <4f60039a-a754-ae4c-1543-0a978d9e13be@rolandturner.com> <1544831589.110194.1517532064123.JavaMail.zimbra@convivian.com> MIME-Version: 1.0 X-Originating-IP: [172.16.0.5] X-Mailer: Zimbra 8.7.11_GA_1854 (ZimbraWebClient - FF58 (Mac)/8.7.11_GA_1854) Thread-Topic: Gmail support of ARC headers from third-parties Thread-Index: JantLkX01vLd7pyKcopbBWCs3yDbLQ== Cc: arc-discuss Subject: Re: [arc-discuss] Gmail support of ARC headers from third-parties X-BeenThere: arc-discuss@dmarc.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Discussion of the ARC protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Jered Floyd via arc-discuss Reply-To: Jered Floyd Content-Type: multipart/mixed; boundary="===============2728806607597782871==" Errors-To: arc-discuss-bounces@dmarc.org Sender: "arc-discuss" --===============2728806607597782871== Content-Type: multipart/alternative; boundary="=_bda8d35f-e3be-4e59-9fc8-f78ed0af3226" --=_bda8d35f-e3be-4e59-9fc8-f78ed0af3226 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit >> Couldn't the first untrusted ARC signer (working in reverse chronological order) >> simply have faked all the earlier headers and applied a "valid" ARC >> signature/seal? This is why I figured you must trust the entire chain if you >> want to trust the sender data. > They can't fake an earlier signature unless they have the private key for the > signing domain. > Ie, a non-modifying hop is basically a no-op, unless you want to trust their > auth results. OK, sure; I agree with that. But I guess I see ARC as primarily for indirect mail flows that break DKIM (i.e. Mailman), in which case I think trust is needed to bridge those hops? --Jered --=_bda8d35f-e3be-4e59-9fc8-f78ed0af3226 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit

Couldn't the first untrusted ARC signer (working in reverse chronological order) simply have faked all the earlier headers and applied a "valid" ARC signature/seal?  This is why I figured you must trust the entire chain if you want to trust the sender data.

They can't fake an earlier signature unless they have the private key for the signing domain.

Ie, a non-modifying hop is basically a no-op, unless you want to trust their auth results.
OK, sure; I agree with that.  But I guess I see ARC as primarily for indirect mail flows that break DKIM (i.e. Mailman), in which case I think trust is needed to bridge those hops?

--Jered
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