ARC initial implementation. Experimental. Bug 2162

1 files changed, 453 insertions, 0 deletions

diff --git a/test/mail/4560.a b/test/mail/4560.a
new file mode 100644
index 000000000..c0432b93a
--- /dev/null
+++ b/test/mail/4560.a
@@ -0,0 +1,453 @@
+From CALLER@bloggs.com Tue Mar 02 09:44:33 1999
+Authentication-Results: test.ex;
+	iprev=pass (the.local.host.name);
+	arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=ip4.ip4.ip4.ip4
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=test.ex)
+	by test.ex with esmtp (Exim x.yz)
+	(envelope-from <CALLER@bloggs.com>)
+	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 <CALLER@bloggs.com>)
+	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 (the.local.host.name);
+	arc=pass (i=2) header.s=sel arc.oldest-pass=2 smtp.client-ip=ip4.ip4.ip4.ip4
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=test.ex)
+	by test.ex with esmtp (Exim x.yz)
+	(envelope-from <CALLER@bloggs.com>)
+	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=QPT4AYm4FOMArfxOkzKDV/wEYbVVD4rZ7BKz7wzbMmLj/oyuObMvZ/zff/uFoegX6Xl0W7Ogs4
+	  Oid4SiYGn8WmoUqxEuEGPo6/rnp93bPkjL6EVZcuqs8gK9JN+DC1/ubihCCj5zQkPcJEiq3fpV
+	  t59JpYefg0lWAxMXRe7XkSQ=;
+ARC-Authentication-Results: i=2; test.ex;
+	iprev=pass (the.local.host.name);
+	arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=ip4.ip4.ip4.ip4
+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 (the.local.host.name);
+	arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=ip4.ip4.ip4.ip4
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=test.ex)
+	by test.ex with esmtp (Exim x.yz)
+	(envelope-from <CALLER@bloggs.com>)
+	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 <CALLER@bloggs.com>)
+	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 (the.local.host.name);
+	arc=pass (i=3) header.s=sel arc.oldest-pass=0 smtp.client-ip=ip4.ip4.ip4.ip4
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=test.ex)
+	by test.ex with esmtp (Exim x.yz)
+	(envelope-from <CALLER@bloggs.com>)
+	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=UZiwwzRnbDfp1Qy85n7I53xtu0tXHmyGcuzuv/QL/pXNNNGPGxS4x+qLliXV3yMyUzPYEYjOkB
+	  zlbFTeha0LdIY6GksuprRSrVRqtoePCgl/9XLyrAtqXe4atZWYr8tpLfbdLGhS0SXAkNHgY/I0
+	  tIhVDsdGN6Z0tMMWxwljKro=;
+ARC-Authentication-Results: i=3; test.ex;
+	iprev=pass (the.local.host.name);
+	arc=pass (i=2) header.s=sel arc.oldest-pass=0 smtp.client-ip=ip4.ip4.ip4.ip4
+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 (the.local.host.name);
+	arc=pass (i=2) header.s=sel arc.oldest-pass=0 smtp.client-ip=ip4.ip4.ip4.ip4
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=test.ex)
+	by test.ex with esmtp (Exim x.yz)
+	(envelope-from <CALLER@bloggs.com>)
+	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=Ve0H0ri4edD3OUKRxMSyMWdVBiikGZwpYN/6lq6fxiFkgxV7atTuDfPJJ77xbuC/vmvLOWSa6x
+	  JcN+stcJn6QcPNjmzoNbK5BLIWwFfLKW02Ao+qqm1DGqWnI6XD3r/oKleEvUc2XdatoYHXCbp7
+	  qQO7e9u/Pzs+6u6dNA+KoJA=;
+ARC-Authentication-Results: i=2; test.ex;
+	iprev=pass (the.local.host.name);
+	arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=ip4.ip4.ip4.ip4
+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 (the.local.host.name);
+	arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=ip4.ip4.ip4.ip4
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=test.ex)
+	by test.ex with esmtp (Exim x.yz)
+	(envelope-from <CALLER@bloggs.com>)
+	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 <CALLER@bloggs.com>)
+	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 (the.local.host.name);
+	arc=fail (i=3) header.s=sel arc.oldest-pass=0 smtp.client-ip=ip4.ip4.ip4.ip4
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=test.ex)
+	by test.ex with esmtp (Exim x.yz)
+	(envelope-from <CALLER@bloggs.com>)
+	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=Q7C2hXJPIS8zzONoXTI8rWioQs8SqYOBTXYLipH7fshFD+j83qqBfxoTQUzZmSjLq1ZDmIyJD/
+	  Ni8eBtkRv3wnbcnp1nxuv3ATnUfFgjd4DjmKtBqIKK0r3yvOXooeK7uEbvJHapXg7uHFSLq62X
+	  c7RWT/QCRAUexkZERkhQP6s=;
+ARC-Authentication-Results: i=3; test.ex;
+	iprev=pass (the.local.host.name);
+	arc=fail (i=2) header.s=sel arc.oldest-pass=0 smtp.client-ip=ip4.ip4.ip4.ip4
+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 (the.local.host.name);
+	arc=fail (i=2) header.s=sel arc.oldest-pass=0 smtp.client-ip=ip4.ip4.ip4.ip4
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=test.ex)
+	by test.ex with esmtp (Exim x.yz)
+	(envelope-from <CALLER@bloggs.com>)
+	id 10HmbJ-0005vi-00
+	for za@test.ex; Tue, 2 Mar 1999 09:44:33 +0000
+Authentication-Results: test.ex;
+	iprev=pass (the.local.host.name);
+	arc=pass (i=2) header.s=sel arc.oldest-pass=2 smtp.client-ip=ip4.ip4.ip4.ip4
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=test.ex)
+	by test.ex with esmtp (Exim x.yz)
+	(envelope-from <CALLER@bloggs.com>)
+	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=QPT4AYm4FOMArfxOkzKDV/wEYbVVD4rZ7BKz7wzbMmLj/oyuObMvZ/zff/uFoegX6Xl0W7Ogs4
+	  Oid4SiYGn8WmoUqxEuEGPo6/rnp93bPkjL6EVZcuqs8gK9JN+DC1/ubihCCj5zQkPcJEiq3fpV
+	  t59JpYefg0lWAxMXRe7XkSQ=;
+ARC-Authentication-Results: i=2; test.ex;
+	iprev=pass (the.local.host.name);
+	arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=ip4.ip4.ip4.ip4
+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 (the.local.host.name);
+	arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=ip4.ip4.ip4.ip4
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=test.ex)
+	by test.ex with esmtp (Exim x.yz)
+	(envelope-from <CALLER@bloggs.com>)
+	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 <CALLER@bloggs.com>)
+	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 (the.local.host.name);
+	arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=ip4.ip4.ip4.ip4
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=test.ex)
+	by test.ex with esmtp (Exim x.yz)
+	(envelope-from <CALLER@bloggs.com>)
+	id 10HmbN-0005vi-00
+	for a@test.ex; Tue, 2 Mar 1999 09:44:33 +0000
+Authentication-Results: test.ex;
+	iprev=pass (the.local.host.name);
+	arc=pass (i=1) header.s=sel arc.oldest-pass=1 smtp.client-ip=ip4.ip4.ip4.ip4
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=test.ex)
+	by test.ex with esmtp (Exim x.yz)
+	(envelope-from <CALLER@bloggs.com>)
+	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 <CALLER@bloggs.com>)
+	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 (the.local.host.name);
+	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=ip4.ip4.ip4.ip4
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=test.ex)
+	by test.ex with esmtp (Exim x.yz)
+	(envelope-from <CALLER@bloggs.com>)
+	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 <CALLER@bloggs.com>)
+	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;
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+	(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
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+	 Tk0K+5xH5KSgkENaPdLBigHtunyNZaSofgKy5vBM=
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+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 <arc-discuss@dmarc.org>; 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;
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+ ruQkYYBBk9GPM52EyHNMvHciRAyaSk+VluGj6c6M=
+Date: Tue, 2 Mar 1999 09:44:33 +0000 (EST)
+To: Brandon Long <blong@google.com>
+Message-ID: <1426665656.110316.1517535248039.JavaMail.zimbra@convivian.com>
+In-Reply-To: <CABa8R6s3e1k=c9wQBtNBWvPT4BrXv3-2NnynyAfRseZ-5s6NKg@mail.gmail.com>
+References: <CO2PR0501MB981081FA2C73CB83FA1C903F1FA0@CO2PR0501MB981.namprd05.prod.outlook.com>
+ <CAAQnKjAV3zEfP-J6JgTrv1jU9UPmf9dG9SPr-+q4jZ6PaGQjxg@mail.gmail.com>
+ <CAAQnKjBBLS9Lm2vnT3i+WUNhrvv2oDEMFEcyozw+YzyKS4G1qQ@mail.gmail.com>
+ <29030059.107105.1517497494557.JavaMail.zimbra@convivian.com>
+ <4f60039a-a754-ae4c-1543-0a978d9e13be@rolandturner.com>
+ <1544831589.110194.1517532064123.JavaMail.zimbra@convivian.com>
+ <CABa8R6s3e1k=c9wQBtNBWvPT4BrXv3-2NnynyAfRseZ-5s6NKg@mail.gmail.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 <arc-discuss@dmarc.org>
+Subject: Re: [arc-discuss] Gmail support of ARC headers from third-parties
+X-BeenThere: arc-discuss@dmarc.org
+X-Mailman-Version: 2.1.18
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+List-Id: Discussion of the ARC protocol <arc-discuss.dmarc.org>
+List-Unsubscribe: <http://lists.dmarc.org/mailman/options/arc-discuss>,
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+List-Archive: <http://lists.dmarc.org/pipermail/arc-discuss/>
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+List-Help: <mailto:arc-discuss-request@dmarc.org?subject=help>
+List-Subscribe: <http://lists.dmarc.org/mailman/listinfo/arc-discuss>,
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+From: Jered Floyd via arc-discuss <arc-discuss@dmarc.org>
+Reply-To: Jered Floyd <jered@convivian.com>
+Content-Type: multipart/mixed; boundary="===============2728806607597782871=="
+Errors-To: arc-discuss-bounces@dmarc.org
+Sender: "arc-discuss" <arc-discuss-bounces@dmarc.org>
+
+--===============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
+
+<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div><br></div><div data-marker="__QUOTED_TEXT__"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
+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?&nbsp; This is why I figured you must trust the entire chain if you want to trust the sender data.<br></blockquote><br><div>They can't fake an earlier signature unless they have the private key for the signing domain.</div><br><div>Ie, a non-modifying hop is basically a no-op, unless you want to trust their auth results.</div></div></div></blockquote><div>OK, sure; I agree with that.&nbsp; 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?<br></div><div><br data-mce-bogus="1"></div><div>--Jered<br data-mce-bogus="1"></div></div></div></body></html>
+--=_bda8d35f-e3be-4e59-9fc8-f78ed0af3226--
+
+--===============2728806607597782871==
+Content-Type: text/plain; charset="us-ascii"
+MIME-Version: 1.0
+Content-Transfer-Encoding: 7bit
+Content-Disposition: inline
+
+_______________________________________________
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+
+--===============2728806607597782871==--
+