I recently switched my network to Optus. since then I do not receive SMS delivery messages when I send a Text message with my mobile.
My phone is a Samsung galaxy S9 Plus. Delivery request is ON in text messages settings.
I don't know if the issue is from optus or any incompatibility between Opus and Samsung galaxy S9+ default SMS app.
Hey Imanyou, @pwright is correct, we don't support SMS Delivery messages currently. If you're needing any other information, please let me know 🙂