Can't send email to [email protected]

I have tried responding to a query on the status of my product evaluation, but it bounces with the following:

Your email to group [email protected] was rejected due to spam classification. The owner of the group can choose to enable message moderation instead of bouncing these emails. More information can be found here: https://support.google.com/a/answer/168383.

As far as my evaluation is concerned, I have stopped as the Mac version of CloudBerry Backup doesn’t support OneDrive as a destination.