lib/PublicInbox/Filter.pm |  3 +--
 t/filter.t                | 18 ------------------

diff --git a/lib/PublicInbox/Filter.pm b/lib/PublicInbox/Filter.pm
index ea6fd33f06d18d1a8278535bd2e3d0c166845da4..4fdbe87e35adfd7dd6cf475dadd04ff5bfe1ab36 100644
--- a/lib/PublicInbox/Filter.pm
+++ b/lib/PublicInbox/Filter.pm
@@ -33,8 +33,7 @@ 	# Note: ssoma already does this, but since we mangle the message,
 	# we should do this before it gets to ssoma.
 	# We also kill Mail-{Followup,Reply}-To headers due to
 	# the nature of public-inbox having no real subscribers.
-	foreach my $d (qw(status lines content-length
-			mail-followup-to mail-reply-to)) {
+	foreach my $d (qw(status lines content-length)) {
 		$mime->header_set($d);
 	}
 
diff --git a/t/filter.t b/t/filter.t
index 80a7c123ae41078ca42bba187803c4bb9daf6232..609a19297f3b4094db0326754f998442a57e2d77 100644
--- a/t/filter.t
+++ b/t/filter.t
@@ -297,24 +297,6 @@ 	is(0, PublicInbox::Filter->run($s), "run was a failure");
 	like($s->as_string, qr/scrubbed/, "scrubbed message");
 }
 
-{
-	my $s = Email::MIME->create(
-		header => [
-			From => 'a@example.com',
-			To => 'b@example.com',
-			'Content-Type' => 'text/plain',
-			'Mail-Followup-To' => 'c@example.com',
-			Subject => 'mfttest',
-		],
-		body => "mft\n",
-	);
-
-	is('c@example.com', $s->header("Mail-Followup-To"),
-		"mft set correctly");
-	is(1, PublicInbox::Filter->run($s), "run succeeded for mft");
-	is(undef, $s->header("Mail-Followup-To"), "mft stripped");
-}
-
 # multi-part with application/octet-stream
 {
 	my $os = 'application/octet-stream';