Alternatives to: SendGrid

EmailLabs provides a fast, secure, and reliable email delivery service with powerful analytics and easy integration for businesses.

Dovecot Pro is a high-performance, scalable, and fully supported email backend platform for large organizations.

Postal is an open-source, self-hostable email delivery platform offering scalability, comprehensive management tools, and robust security features.

Scaleway TEM is a European, reliable, and scalable transactional email service ensuring high deliverability and data sovereignty.

SerenaMail is a reliable SMTP relay service that maximizes email deliverability and protects your sender reputation for high-volume transactional emails.

Stalwart Mail Server is a secure, scalable, and flexible open-source email platform.

Sarbacane Sendkit (formerly Tipimail) is a robust and easy-to-integrate SMTP API for reliable email and SMS delivery with real-time tracking and high deliverability.