How to configure my droplet to use Protonmail as its Mail/Email server

I’ve setup a droplet for use as my personal file syncing solution (ownCloud) vs. relying on Google Drive, Dropbox, etc. I’d like to get an email setup merely for the purposes of my box sending me updates on installed packages, errors, etc. etc.

I’ve read a few articles on DO Community advising against using a droplet as an email server so I’m curious what my other options are for the purposes I’ve described.

If the recommendation is to not setup a mail server, I’d like to investigate whether anyone has used ProtonMail (encrypted email) as their email server instead of relying on something like Google Apps? My whole MO for setting up ownCloud was to keep *some *of my data away from Google :).

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Unfortunately it is not possible to do so with ProtonMail as they do not support SMTP due to how their encryption works. ProtonMail Bridge looks like an interesting solution that you might be able to use once they release a Linux version. It seems like it’s a GUI program only so you might not be able to use it on a headless server, but nothing is confirmed until the Linux version is released.

Meanwhile, I would recommend looking into using a transaction mail service such as Mandrill or Mailgun to programmatically send yourself emails.