You are the Exchange administrator for the Xxx Corporation’s Exchange 2010 organization.All servers in the forest must have anti-virus software that contains a file level virus scanner.After you implement the antivirus software， several users report that they cannot access their mailbox.What should you do？（）

• A、Restart the Microsoft Exchange Mail Submission service
• B、Run the ESEUTIL utility on the Exchange databases
• C、Exclude *.edb and *.log files from the virus scanner
• D、Restart the Microsoft Exchange Transport service
• E、Restart the Microsoft Exchange Information Store service