While trying to export the picture from SharePoint My Sites to the Active Directory attribute ThumbnailPhoto my customer was getting the following error
Error 8311 in Application logs which contained data like the following
An operation failed because the following certificate has validation errors:\n\nSubject Name: CN=mysite.domain.com, OU=App, O=domain.com\nIssuer Name: CN=Company Sub Root CA, OU=App, O=cigna.com\nThumbprint: 26CA7D675C917658E7CB6A6A9E9F7AAAF09B109B\n\nErrors:\n\n The root of the certificate chain is not a trusted root authority..
**Identities have been changed to protect the innocent :)
The Root certificate for intermediate Root CA was not trusted within SharePoint. We knew this by performing the following steps
We had to follow these steps
$Cert = Get-PfxCertificate <C:\SubRoot.cer>
New-SPTrustedRootAuthority <UniqueName> -Certificate $Cert
Exchange trust certificates between farms (SharePoint Foundation 2010)
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