Starting with Prosody 0.12.x, it is possible to rely on the lua-unbound library for all DNS lookups, instead of using Prosody's own resolver. This is a better option, since lua-unbound should have better support than the custom-built module currently in use. In addition to this, there are options that can be enabled for it that would allow using /etc/hosts for the queries, which in turn means that cross-server communications can be tested as well.

The following should be done:

• Update the xmpp_server role.
  • Switch to using lua-unbound for DNS resolutions.
  • Configure the bindings to lookup records via /etc/hosts as well (in addition to normal lookups against DNS servers). This can be achieved using the unbound = { hoststxt = true } configuration directive.
  • Update tests to now test and check for successful delivery of messages between accounts on two separate servers (mandatory/optional ones).
• Update role reference documentation.
• Update usage instructions.
• Update release notes.