A quick overview of Keplars:

1. OAuth Emails – Send product emails by simply connecting Google Workspace or Outlook. No custom domain required, and you can still control the sender name. Ideal for MVPs and early-stage products.

2. Custom Domains – Add your own domain when you’re ready, with full SPF/DKIM/DMARC support.

3. Unified Email Editor - code editor and drag & drop in one place.

4. Sandbox Mode – Test emails safely without consuming real usage.

5. Native Integrations – Works seamlessly with Vercel, React Email, Lovable, Supabase, and more.

6. Scheduling Emails - Schedule transactional and marketing emails. Send individual or in bulk.

7. Fully Dynamic Pricing (Price based on usage and not contacts) – Scale emails, domains, and features independently

Website: https://keplars.com

Docs: https://docs.keplars.com

Editor: https://enceladas.com

Calculate price based on exact email sending volume: https://keplars.com/price-calculator