Messages coming from a server or component may reasonably have no resource part, since you're not communicating with a particular "connected session" as with a client, but with the component itself.

However, say this component has a reason to describe its presence and allow subscriptions to its presence? Is it reasonable to send

<presence from="component.example.com" to="[email protected]" />

in response to probes? I have looked through both Core and XMPP-IM and it doesn't seem clear to me if this is allowed. There is a strong assumption in the language that presence comes from a "resource", but also language like "entity or resource" which implies it might be resonable to have resource-less presence, at least so far as the standard is concerned.

Looking for guidance on my interpretation here.  Thanks.

--
Stephen Paul Weber, @singpolyma
See <http://singpolyma.net> for how I prefer to be contacted
edition right joseph
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