text_combined: papalagi pakeha lojpudzgtdgiaygmailcom hi postfix 233 server receives locally delivers emails domain eg companytop created subdomain xyzcompanytop best mx mailserver however dont want deliver emails locally reroute another mailserver internal network added xyzcompanytop list relay_domains added xyzcompanytop smtp10xxx transport map restarted postfix unfortunately keeps checking existence user accounts subdomain send email ptrncxyrmxyzcompanytop gets bounced border server user unknown local recipient table tell postfix verify recipients companytop xyzcompanytop heres part maincf myhostname mailhostcompanytop mydomain companytop myorigin myhostname mydestination myhostname localhostmydomain localhost relay_domains mydestination hashetcpostfixrelay_domains virtual_alias_maps hashetcpostfixvirtual virtual_alias_domains virtual_alias_maps transport_maps hashetcpostfixtransport smtpd_sender_restrictions check_sender_access hashetcpostfixaccess reject_unknown_sender_domain reject_non_fqdn_sender smtpd_client_restrictions permit_mynetworks check_client_access hashetcpostfixclient_access smtpd_recipient_restrictions permit_mynetworks permit_sasl_authenticated check_client_access hashetcpostfixclient_access reject_unauth_destination reject_unlisted_recipient reject_invalid_hostname reject_unknown_recipient_domain thanks hints papa sat 09 aug 2008 020413 1300 dont check recipient subdomain