In previous versions of Strategy, each recipient of an email subscription received their own email, but was unable to see the other recipients of that email, nor reply all to the group.
In Strategy 2020, users receiving a bucketed email can see the other recipients of the email and reply to them.
This feature is enabled by default in Strategy 2020 and has the same limitations as bucketing. For example, recipients must have compatible security filters and the device used to send the subscription must be the same for each recipient.