Brevo

Brevo (formerly Sendinblue) is a comprehensive marketing suite combining email, SMS, and CRM in one dashboard. The free tier is genuinely generous, letting you send unlimited emails to unlimited contacts as long as you stay under 300 emails per day. Paid plans remove sending limits and add advanced features like marketing automation and detailed segmentation.

It's well-suited for startups, freelancers, and small businesses getting started with marketing automation on a budget. The recently completed rebrand reflects the platform's evolution toward serving marketing teams beyond email alone.