Using Outlook for iOS in business environments for email and scheduling
I had this problem for long. Found a solution today in this forum thread:
https://forums.macrumors.com/threads/outlook-app-keeps-reloading.2216773/
Summary what helped me:
- Remove/Uninstall Outlook
- Reboot
- Install outlook
After this my open mails keep open for along time and outlook is finally working with multi tasking!
Maybe this will help you too?