+ my $mid = 'spam-train@example.com';
+ my $in = <<EOF;
+From: Spammer <spammer\@example.com>
+To: You <you\@example.com>
+Cc: $addr
+Message-ID: <$mid>
+Subject: this message will be trained as spam
+Date: Thu, 01 Jan 1970 00:00:00 +0000
+
+EOF
+ {
+ # deliver the spam message, first
+ ok(run_script(['-mda'], undef, { 0 => \$in }));
+ my $path = mid2path($mid);
+ my $msg = $git->cat_file("HEAD:$path");
+ like($$msg, qr/\Q$mid\E/, "message delivered");
+
+ # now train it
+ local $ENV{GIT_AUTHOR_EMAIL} = 'trainer@example.com';
+ local $ENV{GIT_COMMITTER_EMAIL} = 'trainer@example.com';
+ local $ENV{GIT_COMMITTER_NAME};
+ delete $ENV{GIT_COMMITTER_NAME};
+ ok(run_script(['-learn', 'spam'], undef, { 0 => $msg }),
+ "no failure from learning spam");
+ ok(run_script(['-learn', 'spam'], undef, { 0 => $msg }),
+ "no failure from learning spam idempotently");
+ }
+}
+
+# train ham message
+{
+ local $ENV{PI_EMERGENCY} = $faildir;
+ local $ENV{HOME} = $home;
+ local $ENV{ORIGINAL_RECIPIENT} = $addr;
+ local $ENV{PATH} = $main_path;
+ my $mid = 'ham-train@example.com';
+ my $in = <<EOF;
+From: False-positive <hammer\@example.com>
+To: You <you\@example.com>
+Cc: $addr
+Message-ID: <$mid>
+Subject: this message will be trained as spam
+Date: Thu, 01 Jan 1970 00:00:00 +0000
+
+EOF
+ # now train it
+ # these should be overridden
+ local $ENV{GIT_AUTHOR_EMAIL} = 'trainer@example.com';
+ local $ENV{GIT_COMMITTER_EMAIL} = 'trainer@example.com';
+
+ ok(run_script(['-learn', 'ham'], undef, { 0 => \$in }),
+ "learned ham without failure");
+ my $path = mid2path($mid);
+ my $msg = $git->cat_file("HEAD:$path");
+ like($$msg, qr/\Q$mid\E/, "ham message delivered");
+ ok(run_script(['-learn', 'ham'], undef, { 0 => \$in }),
+ "learned ham idempotently ");
+
+ # ensure trained email is filtered, too
+ my $mime = eml_load 't/mda-mime.eml';
+ ($mid) = ($mime->header_raw('message-id') =~ /<([^>]+)>/);
+ {
+ $in = $mime->as_string;
+ ok(run_script(['-learn', 'ham'], undef, { 0 => \$in }),
+ "learned ham without failure");
+ my $path = mid2path($mid);
+ $msg = $git->cat_file("HEAD:$path");
+ like($$msg, qr/<\Q$mid\E>/, "ham message delivered");
+ unlike($$msg, qr/<html>/i, '<html> filtered');
+ }
+}
+
+# List-ID based delivery
+{
+ local $ENV{PI_EMERGENCY} = $faildir;
+ local $ENV{HOME} = $home;
+ local $ENV{ORIGINAL_RECIPIENT} = undef;
+ delete $ENV{ORIGINAL_RECIPIENT};
+ local $ENV{PATH} = $main_path;
+ my $list_id = 'foo.example.com';
+ my $mid = 'list-id-delivery@example.com';
+ my $in = <<EOF;
+From: user <user\@example.com>
+To: You <you\@example.com>
+Cc: $addr
+Message-ID: <$mid>
+List-Id: <$list_id>
+Subject: this message will be trained as spam
+Date: Thu, 01 Jan 1970 00:00:00 +0000
+
+EOF
+ xsys(qw(git config --file), $pi_config, "$cfgpfx.listid", uc $list_id);
+ $? == 0 or die "failed to set listid $?";
+ ok(run_script(['-mda'], undef, { 0 => \$in }),
+ 'mda OK with List-Id match');
+ my $path = mid2path($mid);
+ my $msg = $git->cat_file("HEAD:$path");
+ like($$msg, qr/\Q$list_id\E/, 'delivered message w/ List-ID matches');
+
+ # try a message w/o precheck
+ $in = <<EOF;
+To: You <you\@example.com>
+List-Id: <$list_id>
+
+this message would not be accepted without --no-precheck
+EOF
+ my ($out, $err) = ('', '');
+ my $rdr = { 0 => \$in, 1 => \$out, 2 => \$err };
+ ok(run_script(['-mda', '--no-precheck'], undef, $rdr),
+ 'mda OK with List-Id match and --no-precheck');
+ my $cur = $git->qx(qw(diff HEAD~1..HEAD));
+ like($cur, qr/this message would not be accepted without --no-precheck/,
+ '--no-precheck delivered message anyways');
+
+ # try a message with multiple List-ID headers
+ $in = <<EOF;
+List-ID: <foo.bar>
+List-ID: <$list_id>
+Message-ID: <2lids\@example>
+Subject: two List-IDs
+From: user <user\@example.com>
+To: $addr
+Date: Fri, 02 Oct 1993 00:00:00 +0000
+
+EOF
+ ($out, $err) = ('', '');
+ ok(run_script(['-mda'], undef, $rdr),
+ 'mda OK with multiple List-Id matches');
+ $cur = $git->qx(qw(diff HEAD~1..HEAD));
+ like($cur, qr/^\+Message-ID: <2lids\@example>/sm,
+ 'multi List-ID match delivered');
+ like($err, qr/multiple List-ID/, 'warned about multiple List-ID');
+
+ # ensure -learn rm works after inbox address is updated
+ ($out, $err) = ('', '');
+ xsys(qw(git config --file), $pi_config, "$cfgpfx.address",
+ 'updated-address@example.com');
+ ok(run_script(['-learn', 'rm'], undef, $rdr), 'rm-ed via -learn');
+ $cur = $git->qx(qw(diff HEAD~1..HEAD));
+ like($cur, qr/^-Message-ID: <2lids\@example>/sm, 'changed in git');