| N/A | Brevo, formerly known as Sendinblue, is the leading customer relationship management (CRM) suite designed to fully cultivate long-term customer relationships and to empower businesses to expand in a fast changing digital world. With Brevo, businesses have a unified view of the customer journey in one easy-to-use platform thanks to intuitive and scalable marketing and CRM tools such as Email, SMS, WhatsApp, Chat, Marketing Automation, Meetings, and much more. | $0 per month |
| N/A | Postmark is a fast, reliable email delivery service designed for transactional emails. It ensures high deliverability, scalability, and real-time email tracking, providing developers with the tools to send critical notifications securely and efficiently. | $15 per month |