有人能告诉我，为什么Postfix发送每个消息两次？
我注意到，一个消息是正确发送，另一个可能（或不可能）与编码有问题。
说实话，我做了一些虚拟域，用户调整，但我找不到为什么这些configuration不应该工作。
我有一点与虚拟用户有关的感觉，但我也可能是错的！
编辑添加postconf -n结果
alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no broken_sasl_auth_clients = yes config_directory = /etc/postfix inet_interfaces = all mailbox_command = procmail -a "$EXTENSION" mailbox_size_limit = 0 milter_default_action = accept milter_protocol = 2 mydestination = reco-server.mydomain, localhost.mydomain, localhost myhostname = reco-server.mydomain.com mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 myorigin = $mydomain non_smtpd_milters = inet:localhost:8891 readme_directory = no recipient_delimiter = + relayhost = smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) smtpd_client_restrictions = permit_mynetworks, permit_sasl_authenticated, \ reject_invalid_hostname, reject_unknown_client, \ reject_rbl_client sbl-xbl.spamhaus.org , \ smtpd_sender_restrictions = permit_mynetworks, reject_unknown_address, \ reject_unknown_sender_domain, reject_non_fqdn_sender smtpd_milters = inet:localhost:8891 smtpd_recipient_limit = 250 smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated,\ reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_local_domain = $mydomain smtpd_sasl_path = private/auth smtpd_sasl_security_options = noanonymous smtpd_sasl_type = dovecot smtpd_tls_auth_only = no smtpd_tls_cert_file = /etc/ssl/certs/server.crt smtpd_tls_key_file = /etc/ssl/private/server.key smtpd_tls_received_header = yes smtpd_tls_security_level = may smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes tls_random_source = dev:/dev/urandom virtual_gid_maps = static:5000 virtual_mailbox_base = /var/mail/vhosts virtual_mailbox_domains = /etc/postfix/virtual_domains virtual_mailbox_maps = hash:/etc/postfix/vmailbox virtual_minimum_uid = 100 virtual_transport = dovecot virtual_uid_maps = static:5000 还有 ：从日志：
Nov 12 12:18:16 reco-server postfix/pickup[8660]: 1B404C35A7: uid=33 from=<www-data> Nov 12 12:18:16 reco-server postfix/cleanup[9388]: 1B404C35A7: message-id=<b3a040c51775e77d08642080424ae61e@localhost> Nov 12 12:18:16 reco-server postfix/qmgr[7727]: 1B404C35A7: from=<[email protected]>, size=7659, nrcpt=1 (queue active) Nov 12 12:18:16 reco-server postfix/pickup[8660]: 2978EC35A6: uid=33 from=<www-data> Nov 12 12:18:16 reco-server postfix/cleanup[9388]: 2978EC35A6: message-id=<125112410529d73e1c2484cf9c991064@localhost> Nov 12 12:18:16 reco-server postfix/qmgr[7727]: 2978EC35A6: from=<[email protected]>, size=1064, nrcpt=1 (queue active) Nov 12 12:18:16 reco-server postfix/smtp[9396]: 2978EC35A6: lost connection with mta6.am0.yahoodns.net[98.139.54.60] while receiving the initial server greeting Nov 12 12:18:20 reco-server postfix/smtp[9396]: 2978EC35A6: to=<[email protected]>, relay=mta6.am0.yahoodns.net[98.136.217.202]:25, delay=4, delays=0.09/0.01/0.92/3, dsn=2.0.0, status=sent (250 ok dirdel) Nov 12 12:18:20 reco-server postfix/qmgr[7727]: 2978EC35A6: removed Nov 12 12:18:20 reco-server postfix/smtp[9394]: 1B404C35A7: to=<[email protected]>, relay=mta5.am0.yahoodns.net[98.139.54.60]:25, delay=4.2, delays=0.19/0.01/0.55/3.5, dsn=2.0.0, status=sent (250 ok dirdel) Nov 12 12:18:20 reco-server postfix/qmgr[7727]: 1B404C35A7: removed
Nov 12 12:18:16 reco-server postfix/pickup[8660]: 1B404C35A7: uid=33 from=<www-data> Nov 12 12:18:16 reco-server postfix/pickup[8660]: 2978EC35A6: uid=33 from=<www-data>
两个不同的Queue-ID表示两个不同的消息被提交给postfix; 这是由你的web服务器进程造成的，而不是postfix。