no issue
- tracking of bulk email opens can be enabled/disabled over time, if we're calculating analytics for emails we don't want emails which didn't have tracking enabled skewing the results so we need a record of whether tracking was enabled for each email
no-issue
This column will allow us to store the canonical recipient filter on the
email resource giving us a detailed log of which members an email was
intended for
no-issue
This column will allow us to decouple the recipients of newsletter from
the `visibility` of a post, allowing us to send emails to specifically
free members, or to send paid posts as newsletters to all members.