diff --git a/t/25_client_sims_starttls.t b/t/25_client_sims_starttls.t
new file mode 100755
index 0000000..1d6245c
--- /dev/null
+++ b/t/25_client_sims_starttls.t
@@ -0,0 +1,46 @@
+#!/usr/bin/env perl
+
+use strict;
+use Test::More;
+use Data::Dumper;
+use JSON;
+
+my $tests = 0;
+
+unlink "tmp.json";
+pass("Running openssl based client simulations against smtp-relay.gmail.com:587"); $tests++;
+my $opensslout = `./testssl.sh --client-simulation --ssl-native -t smtp --jsonfile tmp.json --color 0 smtp-relay.gmail.com:587`;
+my $openssl = json('tmp.json');
+unlike($opensslout, qr/Running client simulations via sockets/, "Tests didn't run via sockets"); $tests++;
+
+pass("Running socket based client simulations against smtp-relay.gmail.com:587"); $tests++;
+unlink "tmp.json";
+my $socketout = `./testssl.sh --client-simulation -t smtp --jsonfile tmp.json --color 0 smtp-relay.gmail.com:587`;
+my $socket = json('tmp.json');
+like($socketout, qr/Running client simulations via sockets/, "Tests ran via sockets"); $tests++;
+
+
+#my $i = 0;
+#foreach my $o ( @$openssl ) {
+#	my $s = $$socket[$i];
+#	if ( $o->{id} =~ /^client_/ ) {
+#		pass("Comparing $o->{id}"); $tests++;
+#		cmp_ok($o->{id}, "eq", $s->{id}, "Id's match"); $tests++;
+#		cmp_ok($o->{severity}, "eq", $s->{severity}, "Severities match"); $tests++;
+#		cmp_ok($o->{finding}, "eq", $s->{finding}, "Findings match"); $tests++;
+#	}
+#	$i++;
+#}
+
+done_testing($tests);
+unlink "tmp.json";
+
+sub json($) {
+	my $file = shift;
+	$file = `cat $file`;
+	unlink $file;
+	return from_json($file);
+}
+
+# problem: 1-4 ok but of limited use: wy should we test whether runs really via sockets or openssl??
+# 5-n:     no sense, we know sockets and ssl are diffferent why should we have a unit test comparing those???