Hi, bekomme folgende Fehlermeldung in /var/log/mail.log sobald ich mit postfix Mails über 1und1 versende (1und1 soll als relayhost fungieren):
Apr 8 16:14:59 localhost postfix/smtp[23450]: E6C1CA94110: to=<apfelfrisch@web.de>, relay=none, delay=1520, status=defer red (Host or domain name not found. Name service error for name=smtp.1und1.de type=MX: Host not found, try again)
Ein nslookup auf smtp.1und1.de funktioniert allerdings anstandslos.
Ein Lösungsansatz war die /etc/resolf.conf nach /var/spool/postfix/etc/ zu kopieren, was bei mir allerdings auch keine änderungen gebracht hat.
Hier mal die /etc/postfix/main.cf :
# See /usr/share/postfix/main.cf.dist for a commented, more complete version smtp_sasl_auth_enable = yes smtp_sasl_security_options = noanonymous smtp_sasl_password_maps = hash:/etc/postfix/sasl/sasl_password # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. myhostname = localhost alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases mydestination = SERVER, localhost, localhost.localdomain, localhost, die-strommixer.de relayhost = smtp.1und1.de mynetworks = 127.0.0.0/8, 192.168.0.0/24 mailbox_size_limit = 5120000000 recipient_delimiter = inet_interfaces = all inet_protocols = all myorigin = /etc/mailname
Hat jemand eine Idee??