OpenSMTPD
OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with...
Some of the top features or benefits of OpenSMTPD are: Simplicity, Security-focused, Lightweight, Integration with OpenBSD, and Active Community. You can visit the info page to learn more.
OpenSMTPD Alternatives & Competitors
The best OpenSMTPD alternatives based on verified products, community votes, reviews and other factors.
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EU Alternatives.
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/postfix-alternativesPostfix is a mail transfer agent (MTA) that routes and delivers electronic mail.
Key Postfix features:
Security Performance Compatibility Reliability
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/exim-alternativesExim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
Key Exim features:
Highly Configurable Flexible Routing Active Community Support Efficient Transport Mechanism
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Visit websiteThe #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder. .
Key MailReach.co features:
Deliverability Improving Email Warming Meaningful Warming Content Smart Warming Algorithm
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/sendmail-alternativesSendmail is a general purpose internetwork email routing facility that supports many kinds of...
Key Sendmail features:
Established Reputation Highly Configurable Open Source Wide Compatibility
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/mail-in-a-box-alternativesMail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.
Key Mail-in-a-box features:
Ease of Setup Full Control Cost-effective Open Source
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/courier-mta-alternativesThe Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open...
Key Courier-MTA features:
Modular Architecture High Performance Open Source LDAP Support
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/ssmtp-alternativessSMTP is a simple MTA to deliver mail from a computer to a mail server.
Key sSMTP features:
Lightweight Easy Configuration Secure Email Sending Simplified Use Case
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/haraka-alternativesOpen source SMTP server written in Node.js.
Key Haraka features:
High Performance Plugin Architecture Open Source Asynchronous and Event-Driven
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/dragonfly-mail-agent-alternativesA small Mail Transport Agent (MTA), designed for home and office use. Part of ...
Key Dragonfly Mail Agent features:
Lightweight Simplicity Compatibility Minimal Dependencies
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/microsoft-smtp-server-alternativesConfigure SMTP e-mail in IIS when you want to deliver e-mail messages from your site.
Key Microsoft SMTP Server features:
Integration with Windows Server Simplicity Cost-effective Security Features
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/mailhog-alternativesMailHog is an email testing tool inspired by MailCatcher, but easier to install.
Key MailHog features:
Easy Setup Web Interface SMTP Server Simulation Integration with Development Environments
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/microsoft-exchange-server-alternativesMicrosoft Exchange Server is a messaging and collaborative software product developed by Microsoft.
Key Microsoft Exchange Server features:
Integration Security Scalability Mobility
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/rspamd-alternativesRspamd is an advanced spam filtering system that allows evaluation of messages by a number of rules...
Key Rspamd features:
High Performance Modular Architecture Advanced Machine Learning Flexible Integration
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/inbucket-alternativesInbucket is an email testing application; it will accept messages for any email address and make...
Key Inbucket features:
Simple Setup Email Testing Web Interface Open Source
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