Create email-system.md

docs/backend/email-system.md

@@ -0,0 +1,16 @@
+# Emails
+
+When you start the local server with `docker` or other ways a local SMTP server starts. Generally, we use Gmail / other provider keys in the SMTP server to send emails using the provided email id. 
+
+To know more on how to get the Keys for local setup. Check the Local setup readme. [Lcoal Setup Readme](https://github.com/Rajdip019/in-house-auth/blob/main/README.md)
+
+
+## Diagram
+
+![email-inhouse-auth](https://github.com/Rajdip019/in-house-auth/assets/91758830/7ea341de-f486-42bc-9070-5b9163dbc7e4)
+
+
+## Feedback
+
+If you have any feedback, please raise an issue or start a discussion. Thank you.
+