"LISTSERV site administrators' forum" <[log in to unmask]> 
wrote on 04/06/2006 03:09:37 PM:

> 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 ? 


Normally the 550 comes before the 5.7.1.  The later is an enhanced error 
code.  Look at RFC 1893 http://www.ietf.org/rfc/rfc1893.txt?number=1893