Resend

Resend just works. I know that's not a deep insight, but when you've spent years wrestling SendGrid's UI from 2014 or Mailgun's pricing surprises, an email API that doesn't fight you is genuinely refreshing. Here's the pitch in one paragraph. Clean dashboard. API is one POST call. Pricing is fair. React Email (their companion library, open source) lets you write transactional emails as JSX components, so your welcome email actually looks like your marketing site without two weeks in Litmus. That's it. That's the whole product. And it's the right product. Adding a domain takes 30 seconds with their guided DNS flow. Sending your first email is one line of code. Audiences are usable by non-developers. Webhooks for bounces and complaints are signed properly and easy to wire into Prisma in an afternoon. I migrated Tiny Startups from SendGrid to Resend in about two hours and the diff was 'less code, fewer headaches.' The free tier (3K emails/month, 100 per day) is enough for an MVP. Pro at $20/month gives you 50K emails which is probably six months of runway for a typical SaaS. They handle deliverability so you don't have to: shared and dedicated IPs, automatic warming, SPF/DKIM/DMARC walked through in the dashboard. Where I'd push back: the broadcast/newsletter product is newer and less mature than Beehiiv or Mailchimp if you're doing big audience sends. Analytics could go deeper. But that's not what Resend is for. It's a transactional email API and on that front, it's the right answer for any new project. Migrating from SendGrid was the highest-ROI hour I spent last quarter. If you're starting from scratch, just use Resend.