Option to prevent sending newsletter to same person twice

Hi guys,

Can you please add an option to prevent sending the same newsletter to the same person twice?

For example a checkbox in the Edit Newsleetters screen saying “Do not send again to subscribers who already received this newsletter” would be great. Somewhere in the “Subscribers” panel on the right, so we can see the subscriber count update when it is ticked.

At the moment there’s no easy way of sending an existing newsletter to only people who haven’t received it.

https://wordpress.org/plugins/newsletters-lite/