My mail server is a 4 inch square box sat next to the TV in my living room (1) It runs Postfix, Dovecot, Amavis/SpamAssassin and OpenDKIM on top of Debian Jess

My mail server is a 4 inch square box sat next to the TV in my living room (1) It runs Postfix, Dovecot, Amavis/SpamAssassin and OpenDKIM on top of Debian Jessie. The mail is stored on a single internal M.2 SATA SSD. It is encrypted using LUKS. (I have backups of course). Also, all of my incoming mail is encrypted with GnuPG on the way in (2) My backup MX is a Digital Ocean box in a different country. Because my primary MX is on the end of a residential ISP IP address, it does not have good reputation (even though it is static). So for outgoing mail, I route over a VPN and out via my backup MX. Unless it is over IPv6, in which case it is routed via my free Hurricane Electric IPv6 tunnel (3) (1) http://www.intel.nl/content/dam/www/public/us/en/documents/product-briefs/nuc-kit-nuc5i5ryk-brief.pdf http://www.intel.nl/content/dam/www/public/us/en/documents/p... (2) https://grepular.com/Automatically_Encrypting_all_Incoming_Email https://grepular.com/Automatically_Encrypting_all_Incoming_E... (3) https://tunnelbroker.net/ https://tunnelbroker.net/