You can pass the mail of sending to xxxxx@yydy.com follows the trends of the goods. The container is followed dynamically --Mail title input container symbol , send from mail to xxxxx@yydy.com, 6 at most each time, number per case is separated with the comma, (for instance: CBHU123456,cbhu654321,CBHU236541), can receive the newest and dynamic mail of container several minutes later. The bill of lading is followed dynamically --Mail title input bill of lading symbol , send from mail to xxxxx@yydy.com,whose name is each time one copy bill of lading,(for instance: COSU12345678 or 12345678), can receive this newest and dynamic mail of relevant goods of bill of lading several minutes later.