Hi all - I have a 2014 MBA updated to High Sierra 10.13.1. For the last week (and it's only referred to email programs) they've been shutting down, first randomly and then after few minutes of usage. I have Mail, Canary and Spark - all three quit after being opened or trying to write/move/read emails. I restarted my Mac, updated the apps but nothing changed. Do you guys have any idea?