Hi Folks, I just upgraded my system to debian-squeeze and I have some trouble configuring dovecot/postfix again. The main issue currently is, that postfix declines any incoming mail with the error: Code: postfix/smtp[13928]: 94993467C532: to=<[email protected]>, orig_to=<[email protected]>, relay=none, delay=2.3, delays=2.3/0/0/0, dsn=5.4.6, status=bounced (mail for myserver.com loops back to myself) I read through several forums and almost all of the times, the problem is a missconfigured Code: mydestination or Code: relayhost . However, this seems fine to me in my main.cf: Code: #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache myhostname = myserver.com mydomain = myserver.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = myserver.com, lvps83-119-3-116.dedicated.hosteurope.de, localhost.dedicated.hosteurope.de, localhost #relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_command = procmail -a "$EXTENSION" mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all inet_protocols = all smtpd_sasl_auth_enable = yes smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = $myhostname broken_sasl_auth_clients = yes virtual_alias_maps = hash:/etc/postfix/virtual_alias virtual_alias_domains = /etc/postfix/virtual_domains transport_maps = hash:/etc/postfix/transport_maps # ---------------------------------------------------------------------- smtpd_recipient_restrictions = permit_mynetworks, reject_unknown_recipient_domain, permit_sasl_authenticated, reject_unauth_destination smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_non_fqdn_sender, reject_unknown_sender_domain, permit smtpd_helo_restrictions = permit_mynetworks, reject_non_fqdn_hostname, reject_invalid_hostname, permit What should I do now ? Any hints ?