Comment by thephyber

This is all conjecture.

I’m not arguing for Outlook. I wouldn’t touch that POS unless I was forced to.

But maybe it’s just easier to not have to teach an astronaut to use another app. If they are using Outlook in space, it’s probably the same app and server they use on the ground.

Of course FTP or RSYNC or whatever would be slightly more efficient for the transfer or more capable or retrying / resuming. I’m not arguing that either.

Sometimes it’s more important that the astronaut doesn’t have to learn another app instead/ system.

Sometimes it’s better to choose a less efficient system that is less prone to accidental destructive. It’s not like anybody ever screwed up a sync command and accidentally wiped a directory or anything.[1]

[1] https://www.reddit.com/r/linuxquestions/comments/1kawpyu/rsy...