Hi folks, trying to send local emails to my isp account with postfix and I get the upper error. Even canonical_mapping of the sender's name didn't help. main.cf: --- begin relayhost = [smtp.ewe.net]:587 smtp_use_tls = yes smtpd_sasl_auth_enable = yes smtp_sasl_security_options = smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt --- end anybody an idea what to do? regards jori