Best Sendmail Alternatives (35)

Atmail Email Server

Atmail is an email server software that allows organizations to host business email on their own servers instead of relying …

sSMTP

Open Source

sSMTP is a lightweight SMTP client that can be used to send email from Linux servers. It allows Linux machines …

EmailSuccess

EmailSuccess is an email marketing and automation platform that helps businesses create, send, and track email campaigns. It includes features …

Courier-MTA

Open Source

Courier-MTA is an open source mail transfer agent (MTA) used for sending, receiving, and routing email. It is designed to …

Zimbra Collaboration Suite

Open Source

Zimbra Collaboration Suite is an open source email and collaboration platform. It includes email, contacts, calendar, document management, and other …

ArgoSoft Mail Server

ArgoSoft Mail Server is an email server software designed for small to medium businesses. It allows companies to host business …

MailerQ

Open Source

MailerQ is an open source message queue for sending large volumes of email efficiently. It can process millions of messages …

Halon MTA

Halon MTA is an email server software designed for businesses and organizations. It handles sending, receiving, and routing email with …

AtMail Open

Open Source

AtMail Open is an open source email server software designed for high delivery performance, security, and reliability. It is based …

Postfix

Open Source

Postfix is a popular open source Mail Transfer Agent (MTA) that routes and delivers email. It is a fast, easy …

BulkMTA

Open Source

BulkMTA is an open-source bulk email software designed for sending large volumes of email. It features flexible API integration, real-time …

Exim

Open Source

Exim is an open source mail transfer agent (MTA) developed for use on Unix systems. It is lightweight, flexible, and …

Microsoft SMTP Server

Microsoft SMTP Server is a software component included in Windows Server that enables the server to send and receive email …

NikaMail

Open Source

NikaMail is an open-source, privacy-focused email service. It allows users to send and receive encrypted emails for free without ads …

CrossBox

Open Source

CrossBox is an open-source web application testing tool that allows you to test web apps across multiple browsers and platforms. …

Hectane

Open Source

Hectane is a powerful simulation and 3D modeling software for engineers. It enables fast and accurate analysis for complex systems …

Haraka

Open Source

Haraka is an open source SMTP server written in Node.js. It is designed to be easy to install and configure, …

Zentyal

Open Source

Zentyal is an open source Linux server that offers a variety of network services, including DHCP, DNS, HTTP proxy, firewall, …

Microsoft Exchange Server

Microsoft Exchange Server is an email and calendar server software developed by Microsoft. It allows enterprises to host business email, …

msmtp

Free

msmtp is a command line SMTP client that can be used to send emails from the Linux command line or …

Mail-in-a-box

Open Source

Mail-in-a-Box is an open source email server that allows you to set up and manage email on your own server …

OpenSMTPD

Open Source

OpenSMTPD is an open source SMTP server daemon for Linux and BSD operating systems. It aims to be a free, …

Dragonfly Mail Agent

Open Source

Dragonfly Mail Agent is an open source email client and personal information manager. It has basic email features like support …