Question : Exchange 2010 Standard. Exbpa ad version 12639 and Certificates

I have a Exchange Server 2010 Standard Running on a w2k8 Standard x64 box. One issue i have is the Microsoft Best Practices analyzer says Active Directory domain '********' has an unrecognized Exchange signature. Current DomainPrep version: 12639. What do i do about this , ive seen the technet articles , but i have also seen post on here that it something that is a flaw that will be fixed in SP1.

2.) everytime i log into OWA for EXchange 2010 i get certificate warnings, is this linked to the domainprep version?

Answer : Exchange 2010 Standard. Exbpa ad version 12639 and Certificates

just folow the link , i think it will meet your requirements
http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00804675ac.shtml