Exchange Certificate Issue (Internal Users)

Posted on 2012-03-28
Last Modified: 2012-04-01
Hi all,

Bit stuck with this, I have our company wild card cert installed in our new Exchange 2010 server… external users are loving it! But internal users get a certificate error every time they start Outlook. of course it’s going to tell them the name is wrong, because they are using mail server, not to connect.

How do I fix this without getting a new cert? is there some work around?
Question by:liminal
  • 3
  • 2

Author Comment

ID: 37780244
Ok clearly I don't know enough about certs.

But If my mail server is called

should not a wildcard cert of


cover it... or not?

Expert Comment

ID: 37780330
are both external and internal domains are same??

Author Comment

ID: 37780362
Ahh no

External is

internal is

Yeah the error is the name on the security certificate does not match the name of the site.

So only a SAN cert will fix this?

Accepted Solution

darasunil earned 500 total points
ID: 37781217
yes .. you have to go for..

Author Closing Comment

ID: 37794132

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