hello,i HAVE EXCHANGE SERVER 2007 AND Active directory, and we have certificate from godaddy for the website ,when i am using ow.domainname.com from a client pc which as internet access in the network ,i dont have any certificate issue.there is no pop-ups for ceritificate error. but when i access owa.domainname.com from a client pc which doesnt have internet or proxy configured i get error with certificate "The security certificate was issued by a company you have not chosen to trust. view the certificate to determine whether you want to trust the certifying authority"Do i have to purchase one more certificate or do i have to import the certificate which i purchased fromgodaddy and add in domain controller using group policy?Can anyone let me know please

hi,import the certificate...please look at here for details ;http://technet.microsoft.com/en-us/library/bb851505.aspxhttp://www.msexchange.org/articles_tutorials/exchange-server-2007/mobility-client-access/securing-exchange-2007-client-access-server-3rd-party-san-certificate.htmlregards,Mumin CICEK | Exchange - MVP | www.cozumpark.com | www.mumincicek.com

Please use the procedure in this article to verify if the root certificate of GoDaddy is in problematic clients Trusted Root Certification Authority store Go Daddy Class 2 Certification Authority Please check the system time of problematic client PC Please see this FAQ from GoDaddy