Function deferred_delivery_text 

pub(crate) fn deferred_delivery_text(to: &str) -> String

SendMessage’s answer when srv accepted the message but queued it because the target’s process is starting up, restarting or stopping (SPEC_JEKT_IMMEDIATE_DELIVERY_2026_09_28.md §2.1). A target that is up gets it at once, mid-turn included, and is reported as delivered.