diff --git a/client/create.go b/client/create.go
index 6878961..c74c06e 100755
--- a/client/create.go
+++ b/client/create.go
@@ -36,7 +36,7 @@ func (client *Client) SendEmail(request *EmailRequest) (*EmailCreateResponse, er
 		return nil, err
 	}
 
-	if resp.StatusCode != http.StatusOK {
+	if resp.StatusCode >= http.StatusBadRequest {
 		response, err := readResponseBody[Response[ErrorResponse]](resp)
 		if err != nil {
 			return nil, err