> -----Original Message----- > From: owner-postfix-us...@postfix.org > [mailto:owner-postfix-us...@postfix.org] On Behalf Of Jack > Sent: Thursday, June 23, 2011 11:10 AM > To: postfix-users@postfix.org > Subject: RE: Error 550 > > > > I searched the all knowing google but wasn't able to find what this > > > 555 really means. Can someone please tell me what this means and if > > > there is > > something I can do on my side or if it's only on the receivers side. > > > > > > Jun 13 12:51:48 pluto postfix/smtp[6897]: D83CF364024: > > > to=<mi...@receivingserver.com>, > > > relay=mail.receivingserver.com[197.9.228.14]:25, delay=4.1, > > > delays=0.69/0/0.16/3.2, dsn=5.0.0, status=bounced (host > > > mail.receivingserver.com[197.9.228.14] said: 555 (in reply to end of > > > DATA command)) > > > > i guess you should write to the postmaster of the remoteserver to tell him > > that > > his config is idiotic becaue this way no (safe) automatic bounce-managment > > is > > possible > > So are we saying this is not a valid error code??
RFC5321 says it is. It means the MAIL FROM or one of the RCPT TO commands was invalid or used unimplemented features. (Why that's done in response to DATA and not at MAIL FROM or RCPT TO is puzzling, though.)
