"Outlook is trying to retrieve data from the MS exchange server outlook.office365.com" is constantly appearing.

Going to throw my voice into the void;

We are a large MSP and have an ever growing list of clients suffering this issue, I have even experienced it a couple of times myself.

• Cached or online mode doesn't seem to make a difference
• Impacting from current build Outlook back to 2013 and a variety in between.
• Tried rolling back to the previous current channel update without any change in behaviour.
• Experiencing on networks with barely utilized 1gb connections
• Worst hit seem to be RDS environments, again does not matter if cached or online
• Checked outlook connection endpoints and are resolving in country so not an issue with long hops/latency

There is clearly a MS side issue that they are either unable to identify or are unwilling to admit.

HI Daniel

I was hoping it was just a KB number that I had to uninstall. At this point I am not sure what update I need to uninstall.

I haven't uninstalled anything as yet.

Lia

In our environment this issue is appearing on multiple versions of Outlook. From the Semi-Annual channel to the Current channel.

It is happening on Old Outlook's that haven't been patched yet and the latest Releases from the above channels.

Also on machines outside of our Remote Desktop environment.

Hi Daniel

Microsoft have come back to me with this which includes a link to what was released :-

https://learn.microsoft.com/en-us/officeupdates/update-history-microsoft365-apps-by-date

 

I provided it to you as requested as in the call you told me that you will try to uninstall the update to one of the PC.

Lia

Hi Lia,

How are you uninstalling the update? Office updates don't show up in Windows Update Uninstall Updates anymore I've found.

How is this related to Outlook/Office updates if we're still running a version from June and this issue only came up on November 10th...

Really sounds like these tech's aren't listening to the issue at all.