Advanced Opt-Out for Messaging Services

Publisher

Twilio

URL

https://www.twilio.com/docs/messaging/tutorials/advanced-opt-out

Published

2026-08-07

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Twilio website terms; proprietary; no-redistribution; short excerpts and locators only

Source notes citing this source

• After a recipient opts out, Twilio blocks further messages from that sender to the number and returns error code 21610. in context
• Twilio handles the English opt-out keywords STOP, UNSUBSCRIBE, END, QUIT, STOPALL, REVOKE, OPTOUT and CANCEL on long codes by default. in context

Cite this source record

APA

WarmTransfer. (2026, August 7). Advanced Opt-Out for Messaging Services. WarmTransfer. https://warmtransfer.net/knowledge/sources/twilio-docs-advanced-opt-out

BibTeX

@misc{warmtransfer-twilio-docs-advanced-opt-out,
  title  = {Advanced Opt-Out for Messaging Services},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/twilio-docs-advanced-opt-out},
  note   = {Twilio, accessed 2026-09-25}
}