Ubuntu 14.04 64-bit, using packages from distro. postconf -n
alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no config_directory = /etc/postfix debug_peer_level = 2 debug_peer_list = 127.0.0.1 inet_interfaces = $myhostname, localhost inet_protocols = ipv4 local_destination_concurrency_limit = 5 local_destination_recipient_limit = 300 local_recipient_maps = $alias_maps, $virtual_alias_maps, ldap:/etc/postfix/ldap-users.cf mailbox_transport = lmtp:inet:hostname.domain.com:2003 message_size_limit = 20480000 mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain mynetworks = 192.168.0.0/16, 127.0.0.0/8 myorigin = $mydomain readme_directory = no smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_client_restrictions = permit_mynetworks, permit_sasl_authenticated, reject smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_unverified_recipient smtpd_sasl_auth_enable = yes smtpd_tls_CAfile = /etc/ssl/certs/myca.crt smtpd_tls_auth_only = yes smtpd_tls_cert_file = /etc/ssl/certs/mycert.crt smtpd_tls_key_file = /etc/ssl/private/mykey.key smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_use_tls = yes transport_maps = hash:/etc/postfix/transport unknown_local_recipient_reject_code = 550 virtual_alias_maps = ldap:/etc/postfix/ldap-aliases.cf /etc/postfix/ldap-aliases.cf server_host = ldaps://dc.domain.com:636 search_base = OU=Mail Aliases,OU=XYZ,DC=domain,DC=com version = 3 query_filter = (&(objectclass=group)(name=%s)) special_result_attribute = member result_attribute = mail bind = yes bind_dn = CN=<removed> bind_pw = <removed> tls_ca_cert_file = /etc/ssl/certs/myca.crt Manual lookup via "postmap -q al...@domain.com ldap:/etc/postfix/ldap-aliases.cf" works without issue But we get this in the logs when any message is received by postfix (not just aliases) May 23 12:07:57 postfix/pickup[15854]: 5CD3DAE7: uid=0 from=<root> May 23 12:07:57 postfix/pickup[15854]: warning: maildrop/D5CDC22C: error writing 5CD3DAE7: queue file write error May 23 12:07:57 postfix/master[15356]: warning: process /usr/lib/postfix/cleanup pid 15907 killed by signal 11 May 23 12:07:57 postfix/master[15356]: warning: /usr/lib/postfix/cleanup: bad command startup -- throttling May 23 12:07:57 postfix/pickup[15854]: 6456FAE9: uid=0 from=<root> May 23 12:07:57 postfix/pickup[15854]: warning: maildrop/F2D5A93C: error writing 6456FAE9: queue file write error May 23 12:07:57 postfix/master[15356]: warning: process /usr/lib/postfix/cleanup pid 15908 killed by signal 11 If we change the server_host to just "ldap://dc.domain.com"; (no SSL) then all is well. I can't tell if something is misconfigured, a library is missing, or if this is just a bug in the Ubuntu build. Thanks, Jeff
