Dear Exchange Gurus, Recently after SSL implementation we all in the office began to get Site Error warning upon launching OL2007. The "http://www.lappari.com/2010/09/exchange-certification-error-on-lan/" helped me fix this. Now nobody can open the Out of Office Assistant. when we try to open it we jusy get the error as mentioned in the title. The OWA has no issue to open the Out of Office Assistant though! I feel I am doomed with this Exchange project!! I whole heartedly appreciate any advise/instructions to resolve this. Regards, BinaBina Hejazi

Please describe this "SSL implementation" you mention. What you did in that regard might help explain what might be wrong.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Hello, Thanks for the sharing. We can also refer to the following link: Security warning when you start Outlook http://support.microsoft.com/kb/940726 Thanks, Simon

Hi Binah Your OOF URL must exist on your certificate on the client access server. 1. Check the OOF URL to ensure it is correct, you can do this by holding down CTRL and right clicking the outlook icon > Test email autoconfiguration 2. If OOF URL appears correct ensure that you can access the URL in a browser 3. Most importantly ensure that the OOF URL exists in the certificate on your client access server, you can do this by using the following command in the exchange management shell.... Get-ExchangeCertificate | FL The output of this command should show your OOF URL in the subject line. All this is covered step by step here.... http://www.proexchange.be/blogs/exchange2007/archive/2009/07/14/your-out-of-office-settings-cannot-be-displayed-because-the-server-is-currently-unavailable-try-again-later.aspx

Hi Binah, Is there any update? Thanks

Hi Simon, I have the same issue. Wondering if you had a solution for it. I have a coexistance with Exchange 2003 and 2010. OOF works from OWA. Autodiscovery fails on outlook 2007 hence OOF not working with Outlook 2007 clients. It works for Outlook 2010 clients. Autodiscovery fails on Exchange Remote Connectivity Test with the following: Attempting to send an Autodiscover POST request to potential Autodiscover URLs. Autodiscover settings weren't obtained when the Autodiscover POST request was sent. Test Steps ExRCA is attempting to retrieve an XML Autodiscover response from URL https://autodiscover.domain.com/AutoDiscover/AutoDiscover.xml for user user@domain.com. ExRCA failed to obtain an Autodiscover XML response. Additional Details An HTTP 500 response was returned from Unknown Followings are Outlook Auto config test result: Autoconfiguration has started, this may take up to a minute Autoconfiguration was unable to determine your settings! Log: Autodiscover to https://domian.com/autodiscover/autodiscover.xml Failed (0x800C8203) Autodiscover to https://autodiscover.domian.com/autodiscover/autodiscover.xml starting GetLastError=0;httpStatus=500 .... Hope you can help..

Out of office is based on Exchange Web Services, not Autodiscover. Ed Crowley MVP "There are seldom good technological solutions to behavioral problems." does this mean that i need a VALID certificate for out of office to work???? i have a users getting "Your Out of Office settings cannot be displayed, because the server is currently unavailable"