OpenSMTPD Alternatives

    OpenSMTPD is described as 'FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with some additional standard extensions' and is an app in the Office & Productivity category. There are more than 10 alternatives to OpenSMTPD for a variety of platforms, including Linux, Mac, Windows, BSD and Self-Hosted solutions. The best alternative is Postfix, which is both free and Open Source. Other great apps like OpenSMTPD are Exim (Free, Open Source), sSMTP (Free, Open Source), Sendmail (Free, Open Source) and Inbucket (Free, Open Source).

    The list of alternatives was last updated Jun 14, 2018


    • Linux
    • Mac
    • Windows
    • BSD
    • Self-Hosted
    • Node.JS
    • Online


    • SMTP
    • Email Server
    • POP3 Support
    • REST API
    • Support for NodeJS
    • Email Forwarding
    • Exchange
    • Exchange email
    • Support for Javascript


    • Free
    • Open Source
    • Paid
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    Showing 10 of 12 alternatives