Yes that's how *I* currently do it, the server sends a message back to the user telling how to unlock communication.
And WhatsUp when you receive a message from someone not in your list holds the first message with a warning giving you the option to add to your contacts, block, or report as spam.. So it's not that the messages just passthrough. ---- Denver Gingerich ha scritto ---- >> ---- 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? > >Denver >https://jmp.chat/
