diff --git a/diagrams/onprem/network.py b/diagrams/onprem/network.py
index 0dcee1ca..84ad09a1 100644
--- a/diagrams/onprem/network.py
+++ b/diagrams/onprem/network.py
@@ -96,6 +96,10 @@ class Pomerium(_Network):
     _icon = "pomerium.png"
 
 
+class Postfix(_Network):
+    _icon = "postfix.png"
+
+
 class Powerdns(_Network):
     _icon = "powerdns.png"
 
diff --git a/docs/nodes/onprem.md b/docs/nodes/onprem.md
index 1b6e6900..bcfd0be0 100644
--- a/docs/nodes/onprem.md
+++ b/docs/nodes/onprem.md
@@ -191,6 +191,7 @@ Node classes list of onprem provider.
 - **diagrams.onprem.network.Opnsense**, **OPNSense** (alias)
 - **diagrams.onprem.network.Pfsense**, **PFSense** (alias)
 - **diagrams.onprem.network.Pomerium**
+- **diagrams.onprem.network.Postfix**
 - **diagrams.onprem.network.Powerdns**
 - **diagrams.onprem.network.Tomcat**
 - **diagrams.onprem.network.Traefik**
diff --git a/resources/onprem/network/postfix.png b/resources/onprem/network/postfix.png
new file mode 100644
index 00000000..72769931
Binary files /dev/null and b/resources/onprem/network/postfix.png differ