Fortunately I can keep my login session for 24 hours - but I understand your scenario alsoLike you, my work prevents me from using Outlook on my personal iPhone and, therefore, I'm forced to rely on the O365 website. While I'd love it if the O365 web app fully supported push notifications using the web app, I'm not sure it would be useful for me and likely many others, as my work automatically signs me out of the O365 website after a ridiculously short period of time --- I think 10 minutes.