[DaSHacka]

GP is presumably asking what their plans are once the service gets popular, runs into the ratelinit, and cannot send any notifications at all (or with significant delays) to the clients.

[gwillem]

Messaging is internally rate limited and capped per recipient. And it uses a sender pool.

[cuu508]

I use per-recipient internal rate limiting too, that alone is not enough, especially for new numbers. I'm not using a sender pool though.