Using classic Outlook for Windows in business environments
Hi Sh_De
Thank you for patiently waiting.
Since it was confirmed that the issue also exists on the web browser, let's report this incident to our in-app support team to aim for the resolution that could possibly fixed the issue. No worries rest-assured this will be taken care of.
Our in-app support specialist has all the tools that can help you check and diagnose the account from their end let's just hope for the best that we can make it through the process of resolving the issue.
Thank you so much for your understanding!
Below are the instructions on how to get in touch to our in-app support team.
Sincerely
Juhn Jac
Microsoft Forum Moderator