status: "invalid" SSL cert

This cert for some reason has a status of "invalid". How do I fix it?

[PS] C:\Documents and Settings\user>Get-ExchangeCertificate | fl

AccessRules        : {System.Security.AccessControl.CryptoKeyAccessRule, System.Security.AccessControl.CryptoKeyAccessRule, System.Security.AccessControl.CryptoKeyAccessRule}
CertificateDomains : {,, server1.local,, mail.server2.local,, mail.server1.local, mh-msx, mh-msx.server1.local,, autodiscover.server1.local,, autodiscover.server2.local}
HasPrivateKey      : True
IsSelfSigned       : False
Issuer             : SERIALNUMBER=354545453, CN=Go Daddy Secure Certification Authority, OU=, O=", Inc.", L=Scottsdale, S=Arizona, C=US
NotAfter           : 4/12/2014 9:14:26 AM
NotBefore          : 4/12/2011 9:14:26 AM
PublicKeySize      : 2048
RootCAType         : Unknown
SerialNumber       : 34q097nq4ng094
Services           : IMAP, POP, IIS, SMTP
Status             : Invalid
Subject            :, OU=Domain Control Validated,
Thumbprint         : 1234567890abcdefghijklmnopqrstuvwxyz
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tigermattConnect With a Mentor Commented:

The certificate will show as Invalid for various reasons, including being expired (not your problem) or if it cannot be traced to a trusted root certification authority.

Did you import GoDaddy's intermediate certificate (it is in the ZIP file you download, called sf_intermediates or words to that effect) to your Trusted Intermediate Certification Authority store (via mmc > Certificates snap-in > Computer account)?

You will need to do that to ensure the proper certificate chain is served down to clients, and indeed for Exchange to recognise the certificate.

First make sure that the Cert has not expired. and if has not then   Here is a guide to show you how to install the Godaddy Cert.

It look like the cert Expires 4/12/2014 so you should be good..
Make sure that the hostname of the server matches the host name on the certificate.  Aliases can sometime cause problems.
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