Yes the server is using authentication on the relay-host. /etc/postfix/main.cf: smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/smtp_auth smtp_sasl_security_options = noanonymous smtp_use_tls = yes smtp_tls_note_starttls_offer = yes
it is just only this particular recipient where it doesn't work! - Georg Am 14.02.2011 11:05, schrieb Reindl Harald: > Is your server using authentication on the relay-host? > If not this MUST NOT work because if it would work the > relayserver coul be used from everybody out there for spam > > Am 14.02.2011 08:59, schrieb Georg Schönweger: >> Hi, >> >> yesterday i received a failure-notice; >> Remote host said: 554 5.7.1 <i...@domain.com>: Relay access denied --> >> this is the error-message which i received from the final recipient. >> The email was send from our webserver. The webserver (postfix) sends the >> email via relayhost (another external postfix Server) to the world outside. >> Does this mean that the email provider from the recipient doesn't allow >> the use of relayhosts? Is it generally better to not use relayhosts? >> ..we had problems with spam some years ago if we sent mails directly >> with postfix, so we used our external email provider as relayhost. But i >> think this was because we didn't have a valid RDNS entry. So should i >> switch off the relayhost?
