diff --git a/client_test.go b/client_test.go
index 8c35e19..5e39dc4 100644
--- a/client_test.go
+++ b/client_test.go
@@ -89,9 +89,12 @@ func TestNewClientWithOptions(t *testing.T) {
 		{"WithTimeout()", WithTimeout(time.Second * 5), false},
 		{"WithTimeout()", WithTimeout(-10), true},
 		{"WithSSL()", WithSSL(), false},
+		{"WithSSLPort(false)", WithSSLPort(false), false},
+		{"WithSSLPort(true)", WithSSLPort(true), false},
 		{"WithHELO()", WithHELO(host), false},
 		{"WithHELO(); helo is empty", WithHELO(""), true},
 		{"WithTLSPolicy()", WithTLSPolicy(TLSOpportunistic), false},
+		{"WithTLSPortPolicy()", WithTLSPortPolicy(TLSOpportunistic), false},
 		{"WithTLSConfig()", WithTLSConfig(&tls.Config{}), false},
 		{"WithTLSConfig(); config is nil", WithTLSConfig(nil), true},
 		{"WithSMTPAuth()", WithSMTPAuth(SMTPAuthLogin), false},