Re: Can we fix what's wrong with SMS?
I can blacklist based on number, but yes, it could be better. Not a problem with the SMS protocol, but a problem with the software.
Up to a point, Lord Copper.
My core desire is:
1. Default: accept messages from valid senders provided the address is replyable.
2. Default: reject messages from un-replyable addresses.
3. Blacklist/whitelist on individual addresses (not just on a number).
and a (for the time being) lesser thing:
4. Rules-based filtering (e.g. "loans" --> reject).
Current main bugbear is (2): does the protocol provide any means to determine whether an address is replyable? I suspect that might be a growing issue if GDPR doesn't stop most SMS spam.