Can you please turn this OFF by default? Emails are getting quarantined and users don't know about it. You're quarantining messages from the Migration Wizard reports in Exchange because it's going to the vendor tenant and it's using the .onmicrosoft.com domain because it's pre-cutover and we don't know when they complete. The product takes 30+ seconds to get from screen to screen just to get into configuring it, the screens are getting interference from the side menu, some screens are completely blank like when you attempt to configure email alerts in Defender settings, and it's just not ready for production, period. Couple that with having to convert all our customers to the New Commerce Experience and the burden too much at one time.
The product is not ready, at least until it's built in to Outlook client directly like Junk Mail is, and turning it on by default is irresponsible.