我正在尝试设置smtpd_recipient_restrictions仅允许特定用户向组邮件 ID 发送邮件。但 postfix 似乎没有限制。我使用的是安装在 debian 10 上的 postfix 3.5.6。以下是我的main.cf。有人能帮忙解决这个问题吗？
#myorigin = /etc/mailname
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no
append_dot_mydomain = no
readme_directory = no
compatibility_level = 2
smtpd_tls_cert_file = /etc/ssl/certs/mail.crt
smtpd_tls_key_file = /etc/ssl/private/mail.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_relay_restrictions =
myhostname = mail.example.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = localhost, mail.example.com, localhost.example.com
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = ipv4
smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks,
reject_unauth_destination
smtpd_recipient_restrictions = check_recipient_access,hash:/etc/postfix/protected, permit_mynetworks, permit_sasl_authenticated, reject_una$
smtpd_restriction_classes = natsys
natsys = check_sender_access hash:/etc/postfix/natsys, reject
virtual_mailbox_domains = mysql:/etc/postfix/sql/mysql_virtual_domains_maps.cf
virtual_alias_maps = mysql:/etc/postfix/sql/mysql_virtual_alias_maps.cf,
mysql:/etc/postfix/sql/mysql_virtual_alias_domain_maps.cf, mysql:/$
virtual_mailbox_maps = mysql:/etc/postfix/sql/mysql_virtual_mailbox_maps.cf,
mysql:/etc/postfix/sql/mysql_virtual_alias_domain_mailbox_maps$
virtual_transport = lmtp:unix:private/dovecot-lmtp
smtp_tls_security_level = may
smtpd_tls_security_level = may
smtp_tls_note_starttls_offer = yes
smtpd_tls_lsmtpd_tls_received_header = yes
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
#smtpd_sasl_local_domain =
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_sasl_auth_enable = yes
#transport_maps = hash:/etc/postfix/transport
message_size_limit = 52428800oglevel = 1
我在文件中创建了受保护的电子邮件 iD /etc/postfix/protected，并创建了 natsys 文件，其中包含允许向组 id 发送电子邮件的用户，还运行了 postmap/restart postfix 服务。
请帮助解决该问题。
谢谢 Rishi