On Wed, Jun 17, 2009 at 3:13 PM, Brian Cully <[email protected]> wrote: > Don't get me wrong, I agree that there are no perfect guarantees. > However, I think focusing too much on that is distracting. While you can > never know for sure you can establish a certain amount of trust. Message ACKs > are one such way to show that odds are better than normal that your message > was received.
Yes, you're quite right - We need to remember that Message Receipts aren't Message ACKs in the obvious way though - they're only to be sent after the message has been processed and given to the user. XEP-198 is message acks per-hop, which would do the trick fine, or we could have an end-to-end ack protocol that gives machine-machine ACKing, or we could use a ping trick as Dave suggests. /K
