TekSMTP is a SMTP/POP3 server for Windows (Vista, Windows 7/8/10, 2003-2019 Server).

TekSMTP consists of a GUI (TekSMTP Manager) and a service application.


  • Simple design and easy to use user interface.
  • Simple interface for user definitions
  • Multi domain operation.
  • TLS support for both POP3 and SMTP.
  • Customizable SMTP and POP3 ports.
  • Black listing, RBL, SPF (RFC 7208) support for anti-spam.
  • Rule engine to process incoming e-mails.
  • POP3 password discovery for easy migration.
  • Performance monitoring through Windows Performance Monitor.


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