[Standards] forwarding stanzas when to=/from= values are absent

Graham King graham at gkgk.org
Tue Nov 25 00:40:28 UTC 2014

Is a message without to/from permitted, or possible? I think the rules
here http://xmpp.org/rfcs/rfc6120.html#stanzas-attributes would prevent it:

To: "A stanza with a specific intended recipient (e.g., a conversation
partner, a remote service, the server itself, even another resource
associated with the user's bare JID) MUST possess a 'to' attribute whose
value is an XMPP address."

From: "When a server receives an XML stanza from a connected client, the
server MUST add a 'from' attribute to the stanza"

Best regards,

On 14-11-24 03:44 PM, Kurt Zeilenga wrote:
> While XEP 297 states the following requirement:
>   * The original sender and receiver should be identified.
> It is not clear how this requirement is fulfilled when one wants to
> forward the stanza:
> <message><body>Hello</body></message>
> how is the sender and receiver to be identified (when known to the
> forwarding entity)?   Add to=/from=attributes with values implied when
> absent?

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