Ok, I didn't realize that it was the same error but expressed after the "rcpt to" beacause I stopped my experiments after the "250 OK" message of the MAIL FROM...
Excuse me...and thank you very much! 2011/2/26 Jeroen Geilman <jer...@adaptr.nl> > On 02/26/2011 09:21 PM, aa wrote: > >> Hi all, >> I'm testing postfix restrictions and I would do two things: >> >> (1) I desire that when a not-authenticated user connects to my postfix >> server and insert the HELO and MAIL FROM commands the mail from command gets >> an error like this "530 authentication required for mail submission" >> > > This is only possible when you set smtpd_delay_reject = no, otherwise > rejection will be delayed until the first RCPT TO. > > Is there a specific reason you want to do this ? > > > -- > J. > >