> I am thinking about buying a BeagleBoard because it seems to be FSF > compliant other than the GPU which requires nonfree blobs to work. > That's not really a problem for me because I think the CPU would be > enough for what I want to use it for.
I'm too looking for a single board computer to use as a small server, for distro porting and some embedded purposes. I think BeagleBone Black is ok for these, while there are more expensive boards with AllWinner or iMX.6 SoCs, some have a SATA port which is useful for servers storing more data (some have also wifi requiring blobs, it's not useful). There is much more work done on free GPU drivers for them and it's probably easier than for PowerVR (which BeagleBoard/BeagleBone and AllWinner A31 have). (Exynos and Broadcom SoCs need nonfree software to boot, only one popular SBC uses one of these.) > Anyway, I am thinking about using a BeagleBoard as a personal mail server. > > Assuming this is possible, i.e. use a BeagleBoard with a lightweight > GNU/Linux OS (probably use Trisquel without a graphical front end) (if > it's not, please let me know), what happens to emails I receive if the > BeagleBoard is switched off for a few minutes? There is no ARM port of Trisquel yet, while it should be easy to do (both Debian and Ubuntu support ARMv7; the Debian port is named armhf). > What I mean is, if I switch the BeagleBoard off for 1 hour, and people > send me emails during that 1 hour. Are those emails lost forever or > will I end up getting those emails when the BeagleBoard is switched on > again? Proper MTAs resend the mail in case of temporary delivery errors (i.e. not when the recipient MTA tells it to not retry). It works and is used in greylisting to prevent receiving spam: non-zombie mail servers will retry the mail after at least five minutes. Some retry after a minute, some after 15 minutes, they continue retrying less often for several days. When my mail server was off for several hours, I received the mails with a several hour delay. It shouldn't be an issue for proper email use.
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