If you are already using Mailgun internally, this option is for you. This will allow you to send emails via your domain and use email tracking. In that case, you will be using billing.mycompany.com instead of mycompany.com to send emails. The process is similar to the main domain process, with the added step of adding email routing to your regular email addresses.Documentation Index
Fetch the complete documentation index at: https://docs.upflow.io/llms.txt
Use this file to discover all available pages before exploring further.
Configure your DNS
Once you have decided which subdomain you want to use (e.g. billing.mycompany.com) follow the steps described in this article to verify the subdomain ownership.