question: private int stripSourceRoute ( String address , int pos ) { if ( pos < address . length ( ) ) { if ( address . charAt ( pos ) == '@' ) { int i = address . indexOf ( ':' ) ; if ( i != - 1 ) { pos = i + 1 ; } } } return pos ; }
target:  Strips source routing. According to RFC-2821 it is a valid approach to handle mails containing RFC-821 source-route information.