Top 15 products relevant to Email and Email Delivery

Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.

GreenArrow Transactional Email provides a flexible and secure SMTP and API email delivery from application or website.

KumoMTA is the world's first Open-Source MTA designed from the ground-up for large-volume senders. Get a fast, flexible, supported solution.

Open Source free

NikaMail is a portable, extendable, zero-config email server.

Sendamatic offers fast, secure, cost-effective SMTP email delivery with high availability and expert support. Sign up today for reliable transactional email.

paid €0.08 (1000 emails)

Development, Network & Admin, and Office & Productivity.

WordPress Mail SMTP.

outMail providing a secure and trusted email relay (also known as SMTP Smart Host or mail proxy).

Mailkit provides a XML-RPC standard based API for secure remote access and control of some of the functions available in the system.

Clean your email list and boost your email delivery rates.

On demand Email Marketing software.

DoveGrid - Effortless Email Validation for Seamless Communication.

MailChannels protects companies against abusive email traffic. Used by 650+ service providers around the world.

A cold email sending tool that automates domain setup, warmups, and inbox delivery. .

Open Source

Boost email deliverability with an AI-powered greylisting platform. Intelligently manage whitelists, greylists, and blacklists to ensure your messages always reach the inbox.