Continuous integration and real-world testing

Original LP Author: Andrea Crotti , LP Link: https://bugs.launchpad.net/bugs/956384

This is not a real bug, I would just like to start a discussion about what can be done to set up a continuos integration system.

Is there any Jenkins server which can be used?

Another thing which I was thinking is if we have some real tests on real systems with various MTA such as Postfix/Exim.

I haven't tried it yet but it seems that http://vagrantup.com/ and puppet could really be very nice tools for the job.

And we could then

1. fire up a VM
2. install the different MTAs
3. create some complicated mailing lists and check that everything works correctly

Other ideas?