A send whose ask never reached the router (the publish failed, or it was otherwise never recorded) stayed kept and
undecided forever, so mail_send_status kept saying "waiting" and the minute sweep kept reading it. Settle it as
ended once its asked time plus SendAskLasts has passed, with the words that say why. Keep an index of undecided
send ids beside the sends (written when kept, removed once decided) so the sweep's work grows with undecided
sends only, not with every send ever kept.
jochen
8b2e2300d8