These are DMARC notifications, generated by an email protocol that all MM Platforms have set up which is called 'DMARC'. DMARC makes emails sent from MM Platforms appear more trustworthy and helps to prevent those emails from being sorted into spam folders. A side effect of this protocol is that when an email is sent from an MM Platform, a DMARC report will be sent to a representative of that Platform. We've set that representative to be webmaster@[website domain] for simplicity. In general, these emails are not something you need to worry about - we recommend setting up an email rule that sorts them into their own folder.
See more about DMARC within the Making Music Platform news section of our website.
