Halon MTA Alternatives
Halon MTA is described as 'Halon is a scriptable and fully featured MTA (SMTP/LMTP server) for large-scale email services' and is an app in the office & productivity category. There are six alternatives to Halon MTA for Linux, Mac, Windows, Self-Hosted solutions and Java. The best alternative is Postfix, which is both free and Open Source. Other great apps like Halon MTA are Sendmail, Exim, PowerMTA and MailerQ.
Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail. It attempts to be fast, easy to administer, and secure. The software is also known by its former names VMailer and IBM Secure Mailer.
Sendmail is a general purpose internetwork email routing facility that supports many kinds of transfer and delivery methods, including the Simple Mail Transfer Protocol (SMTP) used for email transport over the Internet.
Email gateway application (SMTP server) that makes it easy for senders to adopt the latest authentication specifications ( SPF and DKIM) to comply with changing ISP policies for accountable outbound email delivery. No over hype. It just delivers.
MailerQ is a high performance Mail Transfer Agent (MTA) and a very fast SMTP server, designed to deliver large volumes of email messages at very high speeds. MailerQ is based on RabbitMQ AMQP.
EmailSuccess, an advanced SMTP Server (MTA) built from the ground up to handle the most critical reliability, performance, security, and deliverability requirements.