diff --git a/Resources.md b/Resources.md
index af6da07..83360a9 100644
--- a/Resources.md
+++ b/Resources.md
@@ -1,4 +1,8 @@
-## SMTP Relay
-
-- https://github.com/grafana/smtprelay
+## Proxmox
+
+- [Proxmox SDN setup with firewall config](https://www.youtube.com/watch?v=Pa6Drc3SUAE)
+
+## SMTP Relay
+
+- https://github.com/grafana/smtprelay
 - https://hub.docker.com/r/loganmarchione/docker-postfixrelay
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