Forum Discussion
N_B_2-5
Dec 20, 2022Copper Contributor
Outlook with Exchange 2013 not working
Hi, We have Exchange 2013 and using Outlook 2019. In OWA we can search all emails with no issues. For all users in Outlook it only shows the most recent emails when we attempt to search and ...
Moppy
Jul 31, 2025Brass Contributor
Update Outlook to the latest version. On the Exchange 2013 server, use Set-MapiVirtualDirectory IISAuthenticationMethods NTLM,OAuthto enable MAPI over HTTP. Check if the firewall has port 443 open. If the issue persists, you can temporarily allow RPC over HTTP or rebuild the Outlook profile.