There are currently three ways to authenticate a user.

• Automatically confirm users: This will allow you to automatically register users without needing to do any other process for the user.
• Send a confirmation email: This method is designed for development as the email sent will have the MongoDB address and logo in it (and cannot be configured/changed at the moment)
• Run a confirmation function: This will run a function in your App Services application to immediately confirm the user or requires additional confirmation. Please be aware that confirmation must come from the client's application.

However, "Send a confirmation email" is not recommended for production applications for one main reason, and that is that it cannot be customised. Thus:

1. Emails are always sent from "mongodb.com", which is not optimal for a production application.
2. The image included in the email has a broken link and cannot be displayed.

This is corroborated by the product team. https://jira.mongodb.org/browse/PRODTRIAGE-2559

The reason for creating this ticket is if you can please add a disclaimer specifying this so that users are already aware of this limitation.