Email & Integrations

How Shelfwise sends email

Resend and your sender domain.

Email deliverability: SPF, DKIM, DMARC

Why these matter and how to set them up.

Cron jobs and their schedules

Reminders, club digest, club meetings, reading recap, and trial reminders.

Why an email didn't go out

Common failure modes and how to check.

Google Books and Open Library

When each is used and what to do when neither returns a result.

Stripe

What we use, what the webhook does, and what is stored on your subscription.

Supabase: where your data lives

Row-level security and tenant scoping.