Blocking Command (for spam)

[mndrix]

Users should be able to block messages. The most common use case is for preventing SMS spam. Ideally a block action can trigger an external script for adding the phone number to a blacklist (presumably to block phone calls through a PBX).

[mndrix]

Upon further reading, XEP-0191 doesn't make sense for an external component. A client sends stanzas without a to attribute so the server handles them directly. An external component has no way of knowing when one entity has blocked another. Clients can still use XEP-0191 to block spam SMS locally but we can't use it to notify an external blacklist.

I'd still like the component to facilitate blocking of abusive phone numbers, but we'll need another way to do it. Maybe a "/block" command or something.