On Mon, 2011-04-11 at 13:07 -0700, Marc Perkel wrote: > If I use queue-only then the first delivery attempt will be when the
> normal retry cycle occurs?
No.
It will be when the next queue run happens. That depends entirely on how
you're triggering them.
For a finer-grained approach, use a condition based on the $message_age
timer in the transport which the messages get punted by, as you can then
have frequent queue runners but only process messages over a certain
"age".