Rated 5 out of 5 stars

Thank you for this fantastic add-on! This functionality is extremely useful, and I've been looking for it for very long on Thunderbird!

I have noticed something I find a bit problematic. When you accidentally select a date and hour which are not in the future but in the past, the email is sent immediately. I think you should add a warning message pointing out that the user probably mispecified the date and time he wanted for the dispatch.

EDIT: Thanks for your quick reply!

This review is for a previous version of the add-on (6.1). 

That's a good idea. I'll add it to my to-do list to be implemented as time permits.