Debugging email sending in your Web application is always tricky as you need a working SMTP and you also need to watch out that you don’t accidently spam real users (if you’re working on a local copy of real database).
There is a neat one liner that acts as a “sink smtpd” server, meaning that it implements SMTP protocol, so you app can communicate with it, while printing everything it receives on screen:
sudo /usr/lib/python2.6/smtpd.py -n -c DebuggingServer localhost:25
1 | Nicolas Toper
For this purpose, also you can use our SMTP gateway. We have a sandbox mode.
Granted, it might easier to debug in localhost 
I would be curious about your feedback on our overall app
2 | gasper_k
December 3rd, 2009 at 11:39 am
Fakemail is a similar thingy, comes in PHP an Python version. It can dump everything (headers included) to a file in a specified directory, useful for unit testing.
Jure Cuhalev is an Open Source Hacker, with background in Social Sciences and Usability and User Experience (UX).
