![]() ![]() I tried with Visual Studio and several tools to use the new HTTP API that Exchange 2013 offers – a hopeless endeavor. The Exchange administrator still has no idea why that interface does not work properly. Thus, the task can be summed up pretty nicely: Connect to Exchange and read data from a public folder. In most companies public folders are still used for mails and contact data. Microsoft urges us to use the new alternatives to public folders, but that is only a theoretical statement. Please note, that this interrupts the client access for a short moment! After a restart of the Outlook client or during the next Autodiscover, the client should get the correct settings and the access to the public folders and shared mailboxes should work.Yet another thing that surprised me in the most recent release of Delphi was the fact that the import for ActiveX libraries has been improved significantly. A customer has contacts stored in a public folder on an Exchange server. I would recommend to execute “iisreset” after changing the settings. InternalClientAuthenticationMethod : NTLM C:\windows\system32>Get-OutlookAnywhere -Server | select *external*,*internal*ĮxternalClientAuthenticationMethod : NTLM C:\windows\system32>Get-OutlookAnywhere -Server | Set-OutlookAnywhere -InternalClientAuthenticationMethod NTLM C:\windows\system32>Get-OutlookAnywhere -Server | Set-OutlookAnywhere -ExternalClientAuthenticationMethod NTLM InternalClientAuthenticationMethod : Negotiate Open an Exchange Management Shell: C:\windows\system32>Get-OutlookAnywhere -Server | select *external*,*internal*ĮxternalHostname : ĮxternalClientAuthenticationMethod : Negotiate If you can access the public folder or shared mailbox, then you have to change some settings on the Exchange Server 2013 Client Access Server (CAS). You can change the setting and try the access to a public folder or shared mailbox. With this setting you will have a problem: ![]() I took this screenshots from a Outlook 2013, but it looks the same in Outlook 2010. Check the “Logon network security” settings in your Outlook client. If it’s set to “Anonymous Authentication”, then you experience the in KB2834139 described problem. This error is caused by a misconfigured Outlook security setting, called “Logon network security”. If you experience this issue, check the “Logon network security” setting. This can be a huge problem during a migration. ![]() Either there are network problems or the Exchange server is down for maintenance. The users are constantly prompted for credentials or they get this message: Cannot expand the folder. The same can happen to shared mailboxes (mailboxes with Full Access permissions). When moving users to Exchange 2013 it can happen, that they can’t access public folders housed on the old Exchange 2010 or 2007 server. ![]()
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December 2022
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