Opt-out & consent

STOP, HELP, TCPA, and CASL consent rules — not inbound inbox plumbing for replies.

3 guides in this topic

STOP after queued send: skip, do not fake delivered
Handle incoming STOP requests during delayed or queued SMS dispatches correctly by suppressing transmission without recording false delivery receipts.
TCPA and CASL Rights Before Production Send
Enforce TCPA and CASL consent proof and automated STOP handling as mandatory production launch gates rather than post-send deliverability metrics in IOSOR.
STOP and HELP Policy Is Not Inbound Inbox Plumbing
Understand why STOP and HELP keywords represent mandatory recipient rights and platform policy rather than standard inbound conversational inbox routing in IOSOR.