Neither of the suggestions in the solution offered by QB "expert" Jennifer are true or accurate.

1) Mail Log does not offer a "Date Range" and therefore cannot work as suggested! And I don't remember everyone's email address!! A very bad way of doing things

2) Hovering over the date only allows you to email but does not tell you if it has already been emailed earlier!! What are these so-called experts take us for? Mugs or Idiots?