Yes, it's absolutely possible. I wrote an extensive set of step-by-step instructions on how to deploy secure email services on top of Debian 7[0]. They still

Yes, it's absolutely possible. I wrote an extensive set of step-by-step instructions on how to deploy secure email services on top of Debian 7[0]. They still work but are no longer maintained because my current position is that services like Proton Mail [1] make running your own email services unnecessary. You're welcome to review and use them, and if anybody wants to update them to work under Debian 8, PRs are welcome on the Github repo [2] [0] http://securemail.tristor.ro/#!index.md http://securemail.tristor.ro/#!index.md [1] https://protonmail.com/ https://protonmail.com/ [2] https://github.com/Tristor/securemail.tristor.ro https://github.com/Tristor/securemail.tristor.ro