Certificate Error on SBS2008 using Outlook 2007

Hi Guys,

This is quite a common problem but i can't seem to find a clear and concise answer for it:
We have migrated from a SBS2003 box to a new SBS2008. Mail has been migrated over successfully however when the users open up outlook it shows a warning 'The name on the security certificate is invalid or does not match the name of the site'
I can obviously click Yes to proceed and all works fine but we need to get this resolved.
If i view the certificate the issued to and issued by is sbs2008machine.internal.domain.

On the SBS2008 machine i go into EMS and go to get-exchangecertificate it shows 4 entries, the top one is showing as subject sbs2008machine.internal.domain.
In IIS on the bindings for the SBS Web Applications the SSL certificate is set to remote.internal.domain

We've done other bits to test this such as creating new certificates and enabling them for OWA use and SMTP etc but i think we've confused things along the way.
Can anyone give me a clue as to what we need to ?
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

NetexpertsAuthor Commented:
Just as an addition i've notice the certificate error shows 'sites' in the top left which is a certificate on the server.

Not sure if this helps
Import the secuirty certificate from \\servername\Public\Downloads\Certificate Distribution Package\InstallCertificate.exe

Are these machines on the domain and using an exchange connection rather than POP3/IMAP?

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
NetexpertsAuthor Commented:
it comes up with 'The certificate is not installed. The certificate file cannot be found. makes sure that the certificate is in the same folder as the executable file."

I presume i have to export the cert into this folder but which one do i export ?

Creating Active Directory Users from a Text File

If your organization has a need to mass-create AD user accounts, watch this video to see how its done without the need for scripting or other unnecessary complexities.

NetexpertsAuthor Commented:
.....and yes they are on the domain
NetexpertsAuthor Commented:
....and this only appears to be on Outlook 2007 i've just found out
NetexpertsAuthor Commented:
Found the internal URL was set incorreclty and this appeared to be the reason. Followed this KB

Points given for time taken anyway.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.