Mail server to database issue

I am using Mail server to database smart service.In the JNDI Name i am adding data source name.When executing it, i am facing following error

5-21 14:19:36,800 [Appian Work Item - 2231 - execution00 : UnattendedJavaActivityRequest] ERROR com.appiancorp.ps.mail.MailPollerSmartService - Error during database processing
com.microsoft.sqlserver.jdbc.SQLServerException: Incorrect syntax near '`'.

Can anybody help to resolve this issue?