Hi, I'm parsing .changlog file to get bounced adresse with the code and I just wondering something in the structure of these file. 20060405133420 BOUNCE [log in to unmask] 5.7.1 550 5.7.1 No such user 66si618564wra Structure : Date/Time bounce EmailAddress 5.7.1(what is that number) 550 (Bounce Error Code) 5.7.1 Bounce Description Did I understand that structure correctly I mean for the 550 ?