Using classic Outlook for Windows in business environments
Hello everyone,
I've also been grappling with this issue for way too long and have exhausted every option. I decided to take a different approach. I removed my Gmail account from my Outlook app on my iOS device. Within a minute, I regained the ability to flag messages, mark them as read, or observe messages as read after they appeared in the preview pane. I encourage others to give this solution a try and see if it works for them.
Good luck,
Ryan Van Laeys
(PII removed)