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by fluidcruft 4468 days ago
The federation challenge for TextSecure comes up a lot and IIRC it has to do with the fact that it's a SMS replacement so accounts are phone number and phone numbers aren't routable to the user's domain. If I understand correctly it would be like trying to deliver messages after truncating the "@blah.tld" part from a jabber/email address--lots of opportunity for shenanigans.