public void setBcc ( Object bcc ) throws ApplicationException { if ( StringUtil . isEmpty ( bcc ) ) return ; try { smtp . addBCC ( bcc ) ; } catch ( Exception e ) { throw new ApplicationException ( "attribute [bcc] of the tag [mail] is invalid" , e . getMessage ( ) ) ; } }
set the value bcc Indicates addresses to copy the e - mail message to without listing them in the message header . bcc stands for blind carbon copy .