@nadnerB said:
What version of Outlook are they using?
Is Exchange on premise or hosted?
Exchange Online via Office365
Try running Outlook (start --> run) with a few different context switches:
outlook /rpcdiag
outlook /resetfolders
outlook /resetnavpane
I will look into doing this.
Are they using cached mode?
If yes, try disabling it.
Will try this as well.
Have you tried deleting the entire local mail profile?
Control panel
Also, the contents of C:\Users\ %username%\AppData\Local\Microsoft\Outlook
I've deleted it from the control panel but not the contents of the AppData folder. I will try that too.
Thanks