In the default mode, it transmits a mail to an SMTP server (for example at a free mail provider) which takes care of further delivery.
Cost / License
- Free
- Open Source
Platforms
- Linux
- Xfce
Postfix Alternatives
Postfix is described as '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' and is a Mail Server in the online services category. There are more than 25 alternatives to Postfix for a variety of platforms, including Linux, Mac, Windows, Self-Hosted and BSD apps. The best Postfix alternative is Mail-in-a-box, which is both free and Open Source. Other great apps like Postfix are Exim, Mailpit, KumoMTA and MailHog.
Alternatives list
Configure SMTP e-mail in IIS when you want to deliver e-mail messages from your site. Mail can be delivered immediately or it can be delivered to a file location on disk where it can be retrieved for delivery later.
Cost / License
- Paid
- Proprietary
Platforms
- Windows
+9
Microsoft SMTP Server is the most popular commercial alternative to Postfix.
- Microsoft SMTP Server is Paid and Proprietary
Inbucket is an email testing application; it will accept messages for any email address and make them available to view via a web interface.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
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.
Cost / License
- Pay once
- Proprietary
Platforms
- Linux
Halon is a global leader in email infrastructure, empowering large senders and mailbox providers to maximize email. Founded in 2010, Halon's solutions process billions of emails daily worldwide.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Linux
- BSD
- Self-Hosted
- Amazon Web Services
- Microsoft Azure
- Google Cloud Platform
- Docker
- Kubernetes
NikaMail is a portable, extendable, zero-config email server. It is designed to perform automation tasks, provide access to mailboxes (port 110), serve as a mail transfer agent (port 587) and mail exchange service (port 25). NikaMail supports TLS.
+1
BulkMTA is Commercial Mail Server Similar to PowerMTA. IP Rotation, DKIM, Sender / Receiver Rate limiting.
Mailsnag lets you build resilient SMTP integrations while protecting you from spamming customers during testing on QA and Staging environments. It is like Chaos Monkey for SMTP integrations.
Cost / License
- Freemium (Subscription)
- Proprietary
Application types
Platforms
- Online
+1
Mailsnag is the most popular Web-based alternative to Postfix.
- Mailsnag is Freemium and Proprietary
A lightweight mail server with SMTP and POP3 support. It mainly used as store-and-forward mail server with POP access to spooled messages or it can be used as a personal internet mail server.
A lightweight SMTP server written in Go, made for receiving large volumes of mail. To be used as a package in your Go project, or as a stand-alone daemon by running the "guerrillad" binary.
Cost / License
- Free
- Open Source
Platforms
- Online
EmailSuccess, an advanced SMTP Server (MTA) built from the ground up to handle the most critical reliability, performance, security, and deliverability requirements.
+1
Cost / License
- Free
- Proprietary
Application type
Platforms
- Linux
- BSD
- FreeBSD
- Debian
- Ubuntu
- Slackware
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