Configuring preferences and options in Outlook.com
Question for all: do you have more than 1 email account sync'd inside this app? I had my outlook, and a 2nd outlook, and an imap acct. I just did a full delete of the app, then reinstall, and am so far only using my default outlook (mainly because it is the primary but also because it is stored on my phone and I didn't have to do much to get the app working with it again... probably stored on my account due to my usage of the Onedrive app.)
Also, inside the app, there's an option for support. I had a reply already, within a few hours. I'm just pointing them to this thread. I ask you all to do the same. I think the crashing is related to the lack of phone storage, and the real problem here is that the Outlook app is hogging massive resources including phone storage data. Let's focus on this problem and the crashes may go away.