Hello,
Does this issue occur only for one specific user or it happens to all the users?
What’s the detailed error message did you get?
You can try:
1)
Remove the current account from Outlook from the Control Pane
2)
Delete the .OST file(s) associated with the email account.
a. Click on Start > All Programs > Accessories > Run
b. Copy and paste the following text in the Open field and then press ‘Enter’.
%userprofile%\Local Settings\Application Data\Microsoft\Outlook
4)
Now configure the account again.
5)
Make sure the Outlook version is up to date.
Thanks,
Simon