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These aren't read receipts, they're delivery reports from the network (not your device) that you can't control. From the paper: It works by leveraging SMS
by mdasen 3y ago
These aren't read receipts, they're delivery reports from the network (not your device) that you can't control. From the paper:
It works by leveraging SMS Delivery Reports, which are transmitted back to the sender when the network delivers the SMS to the recipient. The sender can request these reports, and there is no way for the recipient to prevent them.