diff --git a/Related-Projects.md b/Related-Projects.md
index ca9e5f7..4522c5b 100644
--- a/Related-Projects.md
+++ b/Related-Projects.md
@@ -36,6 +36,10 @@ If you're one of them, please reach out and we can add your project to the list
 
 - [prometheus-paperless-exporter](https://github.com/hansmi/prometheus-paperless-exporter) <kbd>Go</kbd> is a [Prometheus](https://prometheus.io/) metrics exporter. Uses the REST API.
 
+# Add-ons
+
+- [paperless-mailservice](https://github.com/carlosz1986/paperless-mailservice) <kbd>Go</kbd> sends custom tagged documents to one or more defined email addresses (different rulesets possible) 
+
 # Hosting providers
 
 _As noted above, the Paperless-ngx team does not explicitly verify or endorse any of the products listed here._