All good feedback.

WL is not 100% Whitelabel.
1. The footer of dashboard has references to dmarcreport. -- Is this the spot that you would like changed? https://app.screencast.com/Hgx2GfIFM0uSm
2. The favicon does not work on the custom domain, but has no issues on dmarcreport domain. - Whats your domain name it should work, as you know we have a favion uploader maybe something is wrong with the icon or caching?
3. The email for new team member is sent via dmarcinput.com which is not configured correctly. Ideally an option to specify custom smtp would be nice. For now, its not ready to be used by my clients. - With the current authentication mandates its hard to send as your domain nor do we really want to manage custom smtp settings. The dmarcinput domain does not lead back to dmarcreport.com and its as close as we get to unlabeled for the invitations for now.