MockSmtp icon

App Specs
File size:
810.60 KB
March 18, 2011
July 9, 2016

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MockSMTP is a native Mac application that embeds its own SMTP server. It also features an e-mail client browser, enabling instant viewing of both raw content and HTML rendering, so you can see how your mail looks when delivered.
Configuration couldn't be simpler: just run the application and everything's set up. You don't even need an internet connection for it to work!

What's New
WARNING: Default data directory is now Library/Application Support/MockSmtp/ instead of Documents/Mocksmtp

  • 10.7 (Lion) Version (and still compatible with 10.5 and 10.6)
  • Side-by-side Preview of HTML and Plain Text emails
  • Unread Message Indicator next to each Account
  • URL clickable in plain-text email
  • Delete-key deletes messages
  • Cmd-w closes the window
  • Add confirmation before delivering emails
  • Fix: line break followed by period with double period
  • Fix: errors with multi-part emails with attachment

  • MockSmtp (com.xilinus.mocksmtp) is a Mac software application that has been discovered and submitted by users of The latest version that our users have reported running on their systems is MockSmtp 137. The most popular version of this application used by our users is MockSmtp 1.5.1.

    Operating System: Mac

    Minimum OS version: 10.6.6