Jeff Huang a écrit : > Hi, > > I found that the Return-Path is null when postfix send bounce mail.It > like this: > > Return-Path: <> > > And it show that from=<> from mailllog. > > It means that the bounce mail has no from,
which is exactly what the SMTP standard says. > and some mailServer reject these email. > This is exactly what the "dsn" section of rfc-ignorant.org is about. sites that reject the null sender are out of smtp... that said, this doesn't mean you can send backscatter. please take a look at the BACKSCATTER README. (also google for "backscatter"). > How can I to set a sender address to bounce mail? Don't even try. the null sender address was selected to avoid inifite loops (error on error).