"Send a daily summary email": the prompt that avoids the spam list
A naive "send a daily email" loop fires at the wrong time, breaks on one bad address, and can email someone a hundred times. Here's the request…
Aliteq
Sam Ortega · Build Editor
The short answer
"Send a daily summary email" hides a scheduling problem, a reliability problem and a consent problem. The vague version uses a loop that runs while your app happens to be up; the right version runs…
Use a real cron schedule, not setInterval — the latter fires relative to your last deploy and dies when the app restarts.
Run it in the background (a scheduled function), never during a user's request.
Guard for opt-out, double-sends and per-user failures, or you'll spam people and land on block lists.
Aliteq
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"Send a daily summary email": the prompt that avoids the spam list