kc3-lang/kc3

diff --git a/.gitmodules b/.gitmodules
index d7ef10d..cd3ab84 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -9,3 +9,6 @@
 [submodule "fonts"]
 	path = fonts
 	url = https://git.kmx.io/kc3-lang/fonts.git
+[submodule "smtp-client"]
+	path = smtp-client
+	url = https://git.kmx.io/kc3-lang/smtp-client.git
diff --git a/smtp-client b/smtp-client
new file mode 160000
index 0000000..d874c92
--- /dev/null
+++ b/smtp-client
@@ -0,0 +1 @@
+Subproject commit d874c92f270c3931b4c151702adc6006fa0313b8