Hi All, I have set up a normal test lab. The scenario is like : Domain name:testlab.com Exchange 2007 server name:exsrv (CAS+HTS+MBX rols installed in this server). I have created a self-signed certificate with cn=webmeail.exsrv.com and SAN name includes:exsrv,exser.testlab.com,autodiscover,autodiscover.testlab.com,webmail.testlab.com and enabled it for IIS/IMAP/POP/SMTP in my exchange server. I have changed the OWA virtual direcory internal URL to https://webmail.testlab.com/owa and also changed the other virtual directory internal URL to the same. I also changed the autodiscoverinternalurl to webmail.testlab.com. When I am trying to acces OWA using https://webmail.testlab.com/owa from IE internally, it's not letting me to access OWA (this page can not be displayed) but if I choose https://exsrv.testlab.com/owa, it works fine without certificate error. Once logged in using this URL, if I click the Certificate option from the browser, I can see the message like "webmail.testlab.com has identified this site as exsrv.testlab.com". The self signed certificate that I created has no error. I have checked it from the Exchange server certificate MMC and it's all good. I have checked the the event logs, but no related error was found. My question is as long as the CN holds the name ""webmail.testlab.com" and it's valid and enabled certificate, why it's not letting me access OWA when I try to access OWA using https://webmail.testlab.com/owa Can anyone help me what else I need to check? Regards, Imrul

Sorry. there were typo error in the previous message.....the self-signed certificate contains the following the CN is: webmail.testlab.com SAN:exsrv,exsrv.testlab.com,autodiscover,autodiscover.testlab.com,webmail.testmail.com

Hi, Please verify below steps: 1 Go to EMC server configuration > Client Access > OWA > Properties > Internal URL > https://webmail.testlab.com/owa 2 Add a DNS record in DNS server: webmail.testlab.com Try again.Rowen TechNet Community Support

Hi, Please verify below steps: 1 Go to EMC server configuration > Client Access > OWA > Properties > Internal URL > https://webmail.testlab.com/owa 2 Add a DNS record in DNS server: webmail.testlab.com Try again.Rowen TechNet Community Support

Hi Rown, Thnaks for your reply. For the OWA virtual directory, the internal URL is set to https://webmail.testlab.com/owa. I will create the DNS "A" record for webmail.testlab.com pointing to the CAS server IP. I will let you know how it goes. Regards, Imrul

Looking forward to your update.Rowen TechNet Community Support

be sure yo add the DNS records for autodiscover as well pointing to the IP address for exchange server hosting these CAS servicesNetwork+,Security+,NCSA,MCTS,MCPS,And MCITP

Hi Rowen/ James, Yes, both of your suggestions worked for me. Created both the "A" records and was able to access the OWA internally https://webmail.testlab.com/OWA. Just one question...I did change the internal URL for all the virtual directory (OWA/Webservices/activesync/OAB) to webmail.testlab.com earlier and changed the autodiscoverinteruri to the same. But only changing the owa virtual directory internal url and creating the "A" records in DNS should be the solution to the issue I was having. Any comment on the above will be highly appreciated. Regards, Imrul