diff --git a/Gmail-sending.md b/Gmail-sending.md
index 7348b43..4b56c70 100644
--- a/Gmail-sending.md
+++ b/Gmail-sending.md
@@ -1,3 +1,5 @@
+> Same features are implemented for Wild Duck by [zonemta-wildduck](https://github.com/wildduck-email/zonemta-wildduck) plugin
+
 If a message is sent through Gmail MSA the following happens:
 
 1. If similar message(*) exists in Sent Mail folder, then nothing is done