We have done migration from exchange server 2003 to exchange server 2010.
We have successfully moved all the mailboxes and public folders to the exchange server 2010.
We have verified the mail flow and its working fine.
Still we have not done decommission of exchange server 2003 because we are facing issue with wild card ssl certificate.
Doamin name: xyz.contoso.com
FQSN name of exchange server 2003 - def-mail.xyz.contoso.com
FQDN name of exchange server 2010 - abc-mail.xyz.contoso.com
owa URL 2003: https://mail.contoso.com/exchange
Owa URL 2010: https://mail.contoso.com/owa
We have split dns configuration.
We purchased the Wild card SSL certificate with *.contoso.com
We have verified below things
2010 owa can be accessed externally and internally with url: https://mail.contoso.com/owa
and mail flow is working fine.
we are able to configure emails in cell phone with the url: https://mail.contoso.com
and mail flow is working fine
outlook client can be configured externally and mail flow is working and no error found. but we have verified the server url after the outlook configuration. the server name is abc-mail.xyz.contoso.com. It should be mail.contoso.com. right?
When we are configure outlook internally then we are getting error message of "the name on the security certificate is invalid or does not match the name of the site"
From the outlook client we have done test email auto configuration the we are getting error of "autodiscover to https://contoso.com/autodiscover/autodiscover.xml
failed (0x800c8203) "
kindly suggetst... we are stuck over here...