It appears if a blog subscriber's email address changes, the old address can't be removed by the subscriber nor blog administrator?
She no longer has the old email address. She resubscribed to my blog with her new address. Not everyone remembers to unsubscribe to everything for an old email address that they will drop in the near future.
This is a real face-to-face person I know who is one of my readers --a long time friend of several decades.
The blog I need help with is cyclewriteblog.wordpress.com.