Dummy SMTP server as a service

email iis smtp

I have a Windows Server 2008 machine with IIS installed which is hosting a webapp that is sending some notification mails once-in-a-while. What I'd like to do is to monitor the email sent by the application. For this I need a dummy SMTP server which intercepts messages but won't send them further but save them locally on the hard disk.

I've already found some of them like Papercut, SMTP4Dev. The problem with these that I have to be logged on the server all the time which is not suitable because the server has only 2+1 TS connections. I like to run a program like these as a windows service and check the mails when I need them.


We use http://mailtrap.io web service in developement and staging environment. It is platform-independent and doesn't require you to run your own SMTP.

It offers:

  • All emails in one place
  • Shared access for dev team to the inbox
  • Developer tools to analyze emails
  • Flexible configuration

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