XEP-Remarks/XEP-0203: Delayed Delivery

= Multiple delay tags =

There are multiple hops involved in delivery of a stanza, multiple points where it may be delayed. It may even be delayed multiple times, e.g. because the users client had to resume their XEP-0198 session and their server took its sweet time to get s2s up and running.

Thus it makes sense to allow multiple delayed delivery payloads on a stanza.

= Missing from attribute =

A stanza sent without a  attribute implies. Applying the same to delayed delivery makes sense, ie missing  means that it was the original sender that had a delay.

Including ones own full JID would also be a privacy leak in the context of (semi-)anonymous MUC.