Mailcatcher in Docker
This is just a simple docker container that runs mailcatcher.
You need to allocate a terminal for mailcatcher, otherwise it hangs at startup trying
to print out where it's service is availble from.
docker create -p 127.0.0.1:1080:1080 -p 127.0.0.1:1025:1025 --name="mailcatcher" -t buckett/docker-mailcatcher
Then create an upstart script to have it start at boot time.