> ---- Denver Gingerich ha scritto ----
> >On Thu, Feb 08, 2018 at 02:27:50PM +0100, Jan Pinkas wrote:
> >> We need technical solutions:
> >> 1. Default behavior: don't accept messages from contacts without
> >> subscription. This is default for other IM systems.
> >
> >This is not the default for the most popular IM system: SMS.
> >
> >Please do not implement this on your server, otherwise many useful services 
> >(such as those that emulate or integrate with SMS) will not work anymore, 
> >and your users will have no idea why.

On Thu, Feb 08, 2018 at 03:23:22PM +0100, Marco Cirillo wrote:
> SMS being popular where exactly..?

If SMS is not popular where you live, then replace "SMS" with "WhatsApp".  
There are blocking features in WhatsApp, but by default you receive messages 
from contacts not in your roster/contact list (per the "Report spam" section of 
https://faq.whatsapp.com/en/general/21197244 ).

> Beside that I don't suppose you'd just block period, without giving a legit 
> human user the way to authenticate as such and unlock communication.

I'm not sure what you mean here.  Are you talking about the policy of JMP 
specifically?  Or are you saying that the "don't accept messages from contacts 
without subscription" strategy suggested earlier should be non-silent, i.e. 
that not accepting the message implies sending a response back to the sender 
saying it was not accepted and why?


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