Availablity Service on Exchange 2007
Hi all, some users would like to use the availability service (free/busy) when schedule a meeting, but right now, users cannot gather the information when inviting attendees. An error "No information. No free/busy information could be retrieved." occurs after a period of time. Below is my configuration (not sure it's enough or not): [PS] C:\Documents and Settings\Administrator>Get-ClientAccessServer |Select Name, *internal* |fl Name : CAS1 AutoDiscoverServiceInternalUri : https://cas1.local/Autodiscover/Autodiscover.xml Name : CAS2 AutoDiscoverServiceInternalUri : https://cas2.local/Autodiscover/Autodiscover.xml [PS] C:\Documents and Settings\Administrator>Get-WebServicesVirtualDirectory |Select Name, *URL* |fl Name : EWS (Default Web Site) InternalNLBBypassUrl : https://cas1.local/ews/exchange.asmx InternalUrl : https://cas1.local/EWS/Exchange.asmx ExternalUrl : Name : EWS (Default Web Site) InternalNLBBypassUrl : https://cas2.local/ews/exchange.asmx InternalUrl : https://cas2.local/EWS/Exchange.asmx ExternalUrl : Due to our infrastructure setting, all of us cannot connect (ping) to cas1.local or cas2.local, but we can connect to it's external url https://mail.company.com/, so we're using RPC over HTTPS to connect CAS via Outlook. But I found some interesting thing, when I tried to configure the host file to resolve the internal IP address (192.168.1.xxx), and make my laptop able to connect to the one of the CAS server directly, I can retrive the free/busy information of the attendees, but I will get a certificate error as the name on the security certificate is invalid or does not match the name of the site. Can anyone help? Thank you! One more question, how Outlook to decide to use Internal URL or External URL? Thank you very much !!
May 15th, 2011 10:44pm

Can I use https://mail.company.com/...... as both internal and external URL on the configuration for all users?
Free Windows Admin Tool Kit Click here and download it now
May 15th, 2011 11:29pm

Can I use https://mail.company.com/...... as both internal and external URL on the configuration for all users? Sure, just make sure the internal DNS or host file could resolve the URL. Regarding the questions that "how Outlook to decide to use Internal URL or External URL?", it is not decided by Outlook but provided by CAS server, depending on the Outlook request which indicates the Outlook connection method. As for the free/busy inforamtion, various factors could cause the issue you are encountering in an "external connection" scenario, such as the permission, the CAS configuration, the certificate, etc. Generally, we will start from the following steps: 1. Make sure the URLs returned by Outlook "Test E-Mail AutoConfiguration" match the domain names in the certificate, which is installed on your "Internat-face" CAS server. Note: a self-sign certificate is not supported in ROH (RPC over HTTPS) scenario. 2. And, make sure all the above URLs are available for ROH Outlook clients. 3. Make sure the same problematic user can retrieve the same target users' free/busy information in both OWA and Outlook connecting to CAS server directly. Tips: you may edit your host file and point the external URL to the CAS server's internal IP address. Doing so could bypass the invalid certificate issue you encountered before. Please try the above steps and let me know if you have any finding. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
May 17th, 2011 10:00pm

Hello, Any update? Please feel free to let me know if there is anything unclear for the information provided. If no more questions on this thread, we will consider this to be resolved. Your understanding would be appreciated. Regards, Fiona LiaoPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
Free Windows Admin Tool Kit Click here and download it now
May 19th, 2011 10:04pm

This topic is archived. No further replies will be accepted.

Other recent topics Other recent topics