Build and grow audiences the compliant way — named lists, CSV import, public subscribe forms with double opt-in, a preference centre, and signed one-click unsubscribe.
Organise your audience into named lists, each tracking per-member subscription state, and manage subscribers individually or in bulk. Bring existing contacts in with CSV import that parses and de-duplicates by email, so a messy export becomes a clean, deduplicated list ready to send to.
Grow lists with a hosted subscribe page you can link from anywhere. Lists can require double opt-in — a confirmation email the new subscriber must click before they receive anything — and the form is protected by Cloudflare Turnstile to keep bots and abuse out without annoying real people.
Every recipient gets a one-click unsubscribe and a preference centre where they can fine-tune which lists they stay on rather than leaving entirely. Links are HMAC-signed, so only the genuine recipient can change their preferences — no one can unsubscribe someone else by guessing an address.
A global suppression list is honoured on every send and is the single source of truth for who must never be emailed. Hard bounces and spam complaints feed it automatically, and an explicit opt-out is recorded the moment a recipient unsubscribes — keeping your sender reputation healthy and your audience genuinely opted in.