SharePoint & OneDrive External Sharing One-Time Passcode mails will now come from no-reply@notify.microsoft.com
In order to improve delivery reliability of the one-time passcode e-mails that are sent as part of the external sharing flow in OneDrive and SharePoint, we will be updating the sending address for these mails from no-reply@sharepointonline.com to no-reply@notify.mcirosoft.com. No other e-mails sent from OneDrive or SharePoint are being changed at this time.
When this will happen: