If you are doing to a Cross forest move between two Exchange 2010 Forests
In order to authenticate between Exchange 2010 forests – using a Self Signed Certificate
Will be Exporting the Target Exchange Server Certificate and import it on the Source Exchange Server
Vice Versa
Will be Exporting the source Exchange Server Certificate and import it on the Target Exchange Server
Its Pretty simple
Am Running this on the Source Server
Start – Run – MMC – Click on Add/Remove Snap in
Add Certificates
Choose Computer Account
Choose Local Computer
Click OK
Now being in the Source Exchange Server,
Am Exporting the Certificate from the Certificates Container
Click Next
Choose Next
Now Getting the Source Exchange Server Cert file to the Target Exchange Server
Start – Run – MMC – Click on Add/Remove Snap in
Add Certificates
Choose Computer Account
Choose Local Computer
Right Click on Certificates – All Tasks – Import
Right Click on Certificates – All Tasks – Import Choose Trusted Root Certification Do the Same Process And Import to Certificates on the Personal Container Now Source Cert has been Exported and imported to the Target Exchange Server Now Do the Same Process vice versa Export the Target Exchange Cert and imported to the Source Exchange Server Now Both Exchange 2010 forests can authenticate without any issues , While a cross forest move
Regards Satheshwaran Manoharan
