Hello, I have a problem here with mailing lists.
I've configured these as entries in the /etc/aliases like group-x: :include:/etc/group-x.list and corresponding files /etc/group-x.list with one line per (local) recipient This has been working perfectly for years. Now the number of recipients for some of these lists have increased to more than 200. When a mail is sent to these recipients mail delivery starts as expected but stops short before end of list. The exact count changes, probably due to different state of of concurrent mail queue entries. The error message is an "unknown mail transport error", the mail stays in the queue and delivery starts over again from the beginnig until I remove the mail from the queue. I believe there is some limit to 200 recipients, queue entries or whatever. Playing with parameters like default_destination_concurrency_limit = 300 default_destination_recipient_limit = 300 smtp_recipient_limit = 500 did not produce any visible effect. Any ideas would be appreciated. Thanks Dominik here is an extract from the log ================================================================== Aug 2 14:50:49 postfix postfix/pickup[27603]: 720441D34008: uid=0 from=<root> Aug 2 14:50:49 postfix postfix/cleanup[28372]: 720441D34008: message-id=<20100802125049.720441d34...@postfix.meinedomain.com> Aug 2 14:50:49 postfix postfix/qmgr[904]: 720441D34008: from=<r...@postfix.meinedomain.com>, size=577, nrcpt=1 (queue active) Aug 2 14:50:49 postfix postfix/local[29097]: 720441D34008: to=<a...@postfix.meinedomain.com>, orig_to=<a...@meinedomain.com>, relay=local, delay=0.34, delays=0.23/0/0/0.11, dsn=2.0.0, status=sent (delivered to maildir) ... [211 lines removed, differing only in recipient address and increasing delay] ... Aug 2 14:52:06 postfix postfix/local[29097]: 720441D34008: to=<w...@postfix.meinedomain.com>, orig_to=<a...@meinedomain.com>, relay=local, delay=77, delays=0.23/0/0/77, dsn=2.0.0, status=sent (delivered to command: /usr/bin/vacation -j wie) Aug 2 14:52:06 postfix postfix/local[29097]: 720441D34008: to=<w...@postfix.meinedomain.com>, orig_to=<a...@meinedomain.com>, relay=local, delay=77, delays=0.23/0/0/77, dsn=2.0.0, status=sent (delivered to maildir) Aug 2 14:52:06 postfix postfix/local[29097]: 720441D34008: to=<w...@postfix.meinedomain.com>, orig_to=<a...@meinedomain.com>, relay=local, delay=77, delays=0.23/0/0/77, dsn=2.0.0, status=sent (delivered to maildir) Aug 2 14:52:08 postfix postfix/error[32270]: 720441D34008: to=<a...@meinedomain.com>, relay=none, delay=79, delays=0.23/79/0/0.67, dsn=4.3.0, status=deferred (unknown mail transport error) ================================================================== postconf -n: ================================================================== alias_maps = hash:/etc/aliases biff = no canonical_maps = hash:/etc/postfix/canonical command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/lib/postfix data_directory = /var/lib/postfix debug_peer_level = 2 defer_transports = disable_dns_lookups = no disable_mime_output_conversion = no header_checks = regexp:/etc/postfix/header_checks home_mailbox = Maildir/ html_directory = /usr/share/doc/packages/postfix/html inet_interfaces = all inet_protocols = all local_destination_concurrency_limit = 2 mail_owner = postfix mail_spool_directory = /var/mail mailbox_command = mailbox_size_limit = 0 mailbox_transport = mailq_path = /usr/bin/mailq manpage_directory = /usr/share/man masquerade_classes = envelope_sender, header_sender, header_recipient masquerade_domains = masquerade_exceptions = root message_size_limit = 1024000000 mydestination = $myhostname localhost.$mydomain my-domain.com myhostname = postfix.my-domain.com mynetworks_style = subnet newaliases_path = /usr/bin/newaliases queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/packages/postfix/README_FILES relayhost = relocated_maps = hash:/etc/postfix/relocated sample_directory = /usr/share/doc/packages/postfix/samples sender_canonical_maps = hash:/etc/postfix/sender_canonical sendmail_path = /usr/sbin/sendmail setgid_group = maildrop smtp_sasl_auth_enable = no smtp_use_tls = yes smtpd_client_connection_count_limit = 0 smtpd_client_restrictions = smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks, check_sender_access hash:/etc/postfix/access, check_client_access hash:/etc/postfix/access,reject_non_fqdn_hostname, permit smtpd_recipient_restrictions = permit_sasl_authenticated,check_sender_access hash:/etc/postfix/access,check_client_access hash:/etc/postfix/access,reject_unauth_destination,reject_non_fqdn_sender,reject_non_fqdn_recipient, reject_unverified_recipient,reject_unauth_destination,permit smtpd_sasl_auth_enable = no smtpd_sender_restrictions = permit_mynetworks, check_sender_access hash:/etc/postfix/access, permit smtpd_use_tls = no strict_8bitmime = no strict_rfc821_envelopes = no transport_maps = hash:/etc/postfix/transport unknown_local_recipient_reject_code = 550 virtual_alias_domains = hash:/etc/postfix/virtual virtual_alias_maps = hash:/etc/postfix/virtual ==================================================================
