I periodically scrub our database and delete non-active email addresses or invalid email addresses. Does this affect past email reports? For example, let's say I recently deleted 100 inactive emails. But those 100 email addresses were sent an email in 2017 last year and are part of the data points in calculating open rates, click rates, etc. Now that I've deleted them, will those old 2017 email reports recalculate the metrics, by taking these 100 people out of the equation? (not what i want).
Any guidance would be greatly appreciated!