SMS are not free of charge service. This is maybe reason, why there is SMS-SPAM not work. Still i get many SMS messages, which i don't requested. Sorry, but SMS is not good example. Period.
2018-02-08 14:44 GMT+01:00 Denver Gingerich <[email protected]>: > 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. > > There are lots of other ways to combat spam. I've outlined the steps used > in the Prosody configuration that I and some friends use here: > https://lists.debian.org/debian-rtc/2018/02/msg00000.html . > > I built and operate https://jmp.chat/ (JMP) - a service that lets you > send and receive text and picture messages using a real phone number from > your existing XMPP account. Though we like to advertise that XMPP is great > and you can use any XMPP server with JMP, we realistically won't be able to > do that much longer, exactly because server operators are starting to use > the "strategy" you described. We constantly have to debug situations where > a user's server suddenly stops allowing messages from contacts not in their > roster, and it is very painful, both for us and the user. We do maintain a > list of recommended servers at https://jmp.chat/suggested_servers.html > but not everyone wants to use one of those (or maybe has an account > elsewhere already). > > I really don't want to create a public list of non-recommended servers > (i.e. those that do not work well with JMP and other SMS services because > they silently ignore messages from contacts not in their users' rosters). > So please use other spam-fighting techniques instead, such as those > discussed in the Manifesto, and those at https://lists.debian.org/ > debian-rtc/2018/01/msg00005.html . > > I'm happy to respond to any questions about this or about JMP generally. > Thanks, everyone, for your work to improve the state of XMPP servers! > > Denver > https://jmp.chat/ >
