I removed the default certificates from SBS 2008 Exchange 2007 and now Information Store wont start.

Hi,

On SBS 2008 my old exchange 2007 certificates had expired and the new ones i installed by power shell weren't working properly internally so i got a new one reissued and went to install it.  Whilst i was removing the old certificates i also think i removed the default certs needed for exchange to run.

To make matters worse i misdiagnosed the fault and then deleted the certs from the revoked certificates area so they are completely gone.

Now the information store and imap4 services wont start.

Does anyone know how i can reinstall the default certs and get things back to normal?

A ton of DSACCESS and mail auth errors in the event log.

Help would be great with this one.  The rest of the server functions very well so a rebuild would be nice to avoid.

Zorflieg1Asked:
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jesajaCommented:
Open IIS Manager 7.0 => Server Certificates => in Action pan create Doamin Certificate


now open EMC

run

Get-ExchangeCertificate

copy the thumbprint of the recently created certificate

run

Enable-ExchangeCertificate -thumbprint “your thumbprint” -services IIS, IMAP, POP, SMTP


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Zorflieg1Author Commented:
You mean to install a new certificate?

I have a valid certificate to install.  And that one is now installed correctly.

I think i removed something deeper then that.  Exchange ADAccess is failing so it's like i deleted a certificate involved in Exchange communicating internally with it's own AD.

Just in case i tried creating the cert as you suggested and it failed at the last step with a server error.

I am currently trying to install Ex2007 sp3 hoping it will reinstall the missing components.

T
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Zorflieg1Author Commented:
The server was on Exchange Sp2.  I installed exchange 2007 sp3 which i was told pretty much reinstalls everything from the ground up.  This made everything ok again.

Watching the install it says it reinstalls the Exchange Active Ditrectory Authenication Service so maybe that fixed the communication problem.

Thanks anyway jesaja
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Zorflieg1Author Commented:
s
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jesajaCommented:
hope the sp3 helped fixing the problem

I would still run the Exchange Best Practices Analyzer under tools

for troubleshooting you can enable Diagnostic logging under server config => actions pan => diagnostic logging
then select the service like ADAccess to Expert
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Zorflieg1Author Commented:
Was broken.  Sp3 update fixed.
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