Sad to say, at the moment there are no solutions to this at the moment, but, you can help out on this point. Visit the link below and vote and spread this information.
Vote up Teams as default
Tag: outlook
Export PST File Outlook
You want to know how to export pst file, for a backup och safekeeping.
If its someone else mailbox doesn’t forget GDPR is not happy about that.
Anyway, now I show you step by step how to export pst from outlook.
Export PST File on users computer (Windows):
- Change the password for the user
- (if you don’t have a password to that user’s account)
- Logon to a machine with Outlook
- Add the Office365 account
- Turn off cached mode
- Open Outlook
- File > Open & Export > Import/Export
- Export to a file > pst
- Select the whole account
- Save the file at example external HDD
Fight spam with new outlook add-in
A feature in Outlook

We have added a new feature and you will soon
have it in your outlook, just keep it online.
It can be found underneath Home in outlook.
So what is so special with this add-ins?
As we are depending as many other companies on office365 protection.
But we all can help out to make it better, by report emails that we see that
are Junk, Phishing or not junk.

So if you see junk/spam phishing email report it, when you do that you will get a message like this.

This add-in can be published to entire organization or specific people or group.
Read more about fight against spam
Outlook 2016 + o365 keeps asking for credentials
There is a new registry key, DisableAADWAM, which replaces DisableADALatopWAMOverride in newer builds of Office.
See if this helps
[HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity]
“DisableAADWAM”=dword:00000001
We highly recommend deleting the reg key once the fix is out from Microsoft.
Outlook is offline
Start with restart outlook if that not helping processed
How do you know when you’re working offline or online in Outlook? There are visual cues, starting with the status bar at the bottom of your Outlook window. If either of the following status indicators is shown, it means Outlook isn’t connected to your mail server.


You can’t send or receive email until you reconnect.
Status: Working Offline
Working offline usually is a choice. Returning to an online work mode is a simple process.
In Outlook, on the Send/Receive tab, choose Work Offline to reconnect.

Reboot the computer
Outlook Cached mode Remove or add
First start Outlook
Step 1. Click on File
Step 2. Click on Account Settings, then you will click on Account Settings again in the new window.

Step 3 Double click on your name
Step 4 If you want to remove cached mode unmark Offline settings, like the image, or check the box if you want to have offline Caching.

Federation problem with OUTLOOK?
Remove windows profile for the user, so will everything be fresh next time user login and everything creates.
Don’t forget to backup before removing the profile
Expand Search results Outlook
Look up this place in Regedit

Create this value

Restart Outlook
Now you should get 1000 hits, that’s max
I had this setting in my Outlook then I did this

So maybe you need it too I am not sure