我们遇到的情况是，从特定公司到合法收件人的入站电子邮件以“收件人地址被拒绝：访问被拒绝”的方式退回：
Aug 23 09:15:27 extranet postfix/smtpd[20228]: NOQUEUE: reject: RCPT from sender.com[8.9.10.11]: 554 5.7.1 <user@example.com>: Recipient address rejected: Access denied; from=<user@sender.com> to=<user@example.com> proto=ESMTP helo=<mg01d1.sender.com>
postconf -d | grep 邮件版本
mail_version = 2.7.1
后置 -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
allow_percent_hack = no
allow_untrusted_routing = yes
append_dot_mydomain = no
biff = no
bounce_queue_lifetime = 24h
broken_sasl_auth_clients = yes
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
delay_warning_time = 4h
disable_vrfy_command = yes
html_directory = /usr/share/doc/postfix/html
inet_interfaces = all
mailbox_size_limit = 0
maximal_queue_lifetime = …我有一个旧的 OS X Server 10.4.x 运行 Postfix 2.1.5，它被配置为使用 cyrus 作为邮箱传输。
这是 postconf -n：
# postconf -n
alias_maps = hash:/etc/aliases,hash:/var/mailman/data/aliases
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
enable_server_options = yes
html_directory = no
inet_interfaces = all
local_recipient_maps = proxy:unix:passwd.byname $alias_maps
luser_relay =
mail_owner = postfix
mailbox_size_limit = 0
mailbox_transport = cyrus
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
maps_rbl_domains =
message_size_limit = 15728640
mydestination = $myhostname,localhost.$mydomain,livingnow.com.au,localhost
mydomain = livingnow.com.au
mydomain_fallback = localhost
myhostname = …