diff --git a/app/main_test.go b/app/main_test.go
index 44b8707..7914fed 100644
--- a/app/main_test.go
+++ b/app/main_test.go
@@ -47,7 +47,7 @@ smtpd-proxy:
 	done := make(chan struct{})
 	go func() {
 		<-done
-				serverCh <- cmd.ServerStopSignal
+		serverCh <- cmd.ServerStopSignal
 	}()
 
 	finished := make(chan struct{})
@@ -97,7 +97,7 @@ smtpd-proxy:
 }
 
 func waitForPortListenStart(ctx context.Context, t *testing.T, port int) (conn net.Conn) {
-		var d net.Dialer
+	var d net.Dialer
 	var err error
 	addr := fmt.Sprintf("%s:%d", bindHost, port)
 	poll := time.NewTicker(50 * time.Millisecond)
diff --git a/go.mod b/go.mod
index be5575d..202cf16 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/aws/aws-sdk-go-v2/service/ses v1.18.1
 	github.com/creasty/defaults v1.7.0
 	github.com/emersion/go-sasl v0.0.0-20220912192320-0145f2c60ead
-	github.com/emersion/go-smtp v0.18.1
+	github.com/emersion/go-smtp v0.19.0
 	github.com/hashicorp/go-multierror v1.1.1
 	github.com/jessevdk/go-flags v1.5.0
 	github.com/jordan-wright/email v4.0.1-0.20210109023952-943e75fe5223+incompatible
diff --git a/go.sum b/go.sum
index bcddf8c..e22f7dc 100644
--- a/go.sum
+++ b/go.sum
@@ -58,8 +58,8 @@ github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDD
 github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21/go.mod h1:iL2twTeMvZnrg54ZoPDNfJaJaqy0xIQFuBdrLsmspwQ=
 github.com/emersion/go-sasl v0.0.0-20220912192320-0145f2c60ead h1:fI1Jck0vUrXT8bnphprS1EoVRe2Q5CKCX8iDlpqjQ/Y=
 github.com/emersion/go-sasl v0.0.0-20220912192320-0145f2c60ead/go.mod h1:iL2twTeMvZnrg54ZoPDNfJaJaqy0xIQFuBdrLsmspwQ=
-github.com/emersion/go-smtp v0.18.1 h1:4DFV0jxKhq0Gqt/Br3BRHyKZy5TStk6NIMHAx6GE/LA=
-github.com/emersion/go-smtp v0.18.1/go.mod h1:qm27SGYgoIPRot6ubfQ/GpiPy/g3PaZAVRxiO/sDUgQ=
+github.com/emersion/go-smtp v0.19.0 h1:iVCDtR2/JY3RpKoaZ7u6I/sb52S3EzfNHO1fAWVHgng=
+github.com/emersion/go-smtp v0.19.0/go.mod h1:qm27SGYgoIPRot6ubfQ/GpiPy/g3PaZAVRxiO/sDUgQ=
 github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
 github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
diff --git a/tests/ses_forwarder_test.go b/tests/ses_forwarder_test.go
index c4f0017..da3fd4a 100644
--- a/tests/ses_forwarder_test.go
+++ b/tests/ses_forwarder_test.go
@@ -168,7 +168,7 @@ smtpd-proxy:
 func iniFakeSMTPContainer(ctx context.Context) (container tc.Container, err error) {
 	vol, _ := filepath.Abs(".volume")
 	_ = os.Mkdir(vol, 0o755)
-	_ = os.RemoveAll(filepath.Join(vol, "./state/ses"))
+	_ = os.RemoveAll(vol + "/state/ses")
 	localstackReq := tc.ContainerRequest{
 		Image:        "localstack/localstack:2.3.2",
 		ExposedPorts: []string{"4566/tcp"},