Rated 4 out of 5 stars

Thanks for this add-on!

I have a small suggestion for improvement. In the standard settings, I would like to be able to set that all mail recipients are always set in BCC. With the opening menu window before sending the mail, I would always like to decide for myself whether the mail delivery should deviate from my basic decision and the mail recipients should remain visible. Unfortunately, it has happened to me a few times that I have not set a checkmark in the field "Change all receivers to BCC?".

greetings
Claus

That feature was available in the old Use BCC Instead addon - to default the initial recipient field to BCC instead of TO. I would have included it if I could, but I cannot because the new 'Mail Extension' addon APIs do not allow changing the compose window.