Parsing message with empty CC

pkg/message/header.go

@@ -152,6 +152,10 @@ func parseAddressComment(raw string) string {
 }
 
 func parseAddressList(val string) (addrs []*mail.Address, err error) {
+	if val == "" {
+		return
+	}
+
 	addrs, err = mail.ParseAddressList(parseAddressComment(val))
 	if err == nil {
 		if addrs == nil {

pkg/message/parser_test.go

@@ -224,6 +224,21 @@ func TestParseTextPlainWithPlainAttachment(t *testing.T) {
 	assert.Equal(t, readerToString(attReaders[0]), "attachment")
 }
 
+func TestParseTextPlainEmptyCC(t *testing.T) {
+	f := getFileReader("text_plain_empty_cc.eml")
+
+	m, _, plainBody, attReaders, err := Parse(f, "", "")
+	require.NoError(t, err)
+
+	assert.Equal(t, `"Sender" <sender@pm.me>`, m.Sender.String())
+	assert.Equal(t, `"Receiver" <receiver@pm.me>`, m.ToList[0].String())
+
+	assert.Equal(t, "body", m.Body)
+	assert.Equal(t, "body", plainBody)
+
+	assert.Len(t, attReaders, 0)
+}
+
 func TestParseTextPlainWithImageInline(t *testing.T) {
 	f := getFileReader("text_plain_image_inline.eml")
 

pkg/message/testdata/text_plain_empty_cc.eml

@@ -0,0 +1,5 @@
+From: Sender <sender@pm.me>
+To: Receiver <receiver@pm.me>
+CC: 
+
+body