For a few years I’m noticing more and more weird and unexplainable behaviour in Outlook. We support mostly 365 Exchange Online clients on Windows workstations or RDS environments.
The amounts of unexplainable bullshit we face is staggering. Outlook not being able to open the folder set, weird MFA glitches, weird bugs in the UI and downright weird errors coming from nowhere is some of the stuff we face weekly.
Am I alone on this?
No, that’s been the Outlook experience since probably forever.
I’ve been doing this for 15 years daily now and it was never this bad. Not even when everyone ran Exchange on-prem with al the bullshit involved with that.
I am just a user and not administering anything here, but holy fuck my mailbox is almost full, and yet I can’t delete more than a couple of emails at once without crashing Outlook.
I can’t believe how many wacky UI glitches this app has, and how many ways I can crash it from normal use. It’s not my PC either - coworkers have similar problems.
Do it from the web man. Doing it from the app means it needs to sync twice. Do it in the web browser, right off the server, and you can mass delete shit all day long and just minimize the browser and keep working.
Outlook classic is on life support. Next October Exchange Online drops support for it.
It’s built on decades of code. It allows plugins to directly affect the UX. It still uses I explore at times.
I switched to new outlook and while it has its own significant issues, at least it’s not spaghetti code. It also runs on top of Edge, which allows Outlook devs to ignore a lot of backend code, and makes the UX pretty consistent across platforms.
Try dragging a folder inside another folder in your inbox and watch it disappear.

