http://arcani5qce7mhpqnemrmj2mv5dx2qjxnfzw5d3vzuvs5bqlzb65nkbyd.onion/guides/prosody.php
An XMPP server must have a valid certificate signed for the domain-part of the XMPP address. For example, if the intended address for a
user is to be
[email protected] , then the server needs a valid TLS certificate for example.com . If your primary domain is used for something else, you can instead use a subdomain, like 'talk' or 'chat', etc — which would then have addresses like
[email protected] .