Well, sounds like a pretty effective back-off multiplier to me :) With recipient-configurable values of course. Maybe the problem with email is that is it such

Well, sounds like a pretty effective back-off multiplier to me :) With recipient-configurable values of course. Maybe the problem with email is that is it such an old installation, in lack of a better word. I feel like there’s a better - almost similar - format waiting right around the corner. In particular, sending has to incur some sort of ‘cost’ in terms of time or effort. This [0] needs to be doubly conservative. [0]: https://en.m.wikipedia.org/wiki/Robustness_principle https://en.m.wikipedia.org/wiki/Robustness_principle