Puntuado con 5 de 5 estrellas

por Randy el Ago. 13, 2018 · enlace permanente

Still works on TB 52.9.1! Allows you to set delivery status notification to on, by default, and several other options. Exactly what I was looking for. Not sure why this option was removed from Thunderbird, but it should be included, so thanks to the developer of this.