An SMTP sink. It accepts all email (with a list of addresses to reject) and then saves them to a file. At no time does it send any emails.
A web UI allows the user to review when emails were received and a REST API allows the user to programmatically check the same info.
$ sudo pip install smtpsink
See http://lyda.github.io/smtpsink/ for complete API information (also contained in the doc
directory).
This must be run as root. It needs to listen on port 25 for incoming emails.