OpenSMTPD icon
OpenSMTPD icon

OpenSMTPD

OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with some additional standard extensions. It allows ordinary machines to exchange e-mails with other systems speaking the SMTP protocol.

Cost / License

  • Free
  • Open Source

Platforms

  • Linux
  • BSD
  • Self-Hosted
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  1.  SMTP Support

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OpenSMTPD information

  • Developed by

    Unknown

  • Licensing

    Open Source and Free product.

  • Alternatives

    13 alternatives listed

  • Supported Languages

    • English

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OpenSMTPD was added to AlternativeTo by Seth on and this page was last updated .
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What is OpenSMTPD?

OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with some additional standard extensions. It allows ordinary machines to exchange e-mails with other systems speaking the SMTP protocol.

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