我正在尝试在新的 Debian 系统 (Postfix 2.11.3) 上重新创建用于垃圾邮件/防病毒检查的邮件网关，该系统来自较旧的 OpenSuse 安装 (Postfix 2.6.5)。我尝试使用“telnet localhost 25”对其进行测试。当向本地服务器上的邮局管理员地址发送测试电子邮件时，一切正常，但是，如果我在管理用户帐户的邮件服务器之一上使用现有地址，它会返回错误 550“收件人地址被拒绝：本地收件人表中的用户未知”。
我构建了一个新配置，试图使其适应版本变化。我已经重建了传输图并检查了其中的域，所以这可能不是问题所在。
主文件：
# See /usr/share/postfix/main.cf.dist for a commented, more complete version
# Debian specific: Specifying a file name will cause the first
# line of that file to be used as the name. The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
readme_directory = no
# TLS parameters
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
masquerade_classes = envelope_sender, header_sender, header_recipient
myhostname = spamfilter.local
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = $myhostname, localhost.$mydomain, domain1.tld, domain2.tld, domain3.othertld
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 192.168.1.0/24 10.0.0.0/24 192.111.112.5/32
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
canonical_maps =
virtual_alias_maps =
virtual_alias_domains =
relocated_maps =
sender_canonical_maps =
relay_host = $mydestination
transport_maps = hash:/etc/postfix/transport_maps
smtpd_recipient_restrictions =
# check_policy_service inet:127.0.0.1:10023
permit_mynetworks,
reject_unauth_destination,
permit_sasl_authenticated,
reject_invalid_hostname,
reject_non_fqdn_sender,
reject_non_fqdn_recipient,
reject_unknown_sender_domain,
reject_unknown_recipient_domain,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client sbl-xbl.spamhaus.org,
reject_rbl_client dul.dnsbl.sorbs.net,
reject_rbl_client zen.spamhaus.org,
reject_unverified_recipient,
permit
message_size_limit = 50000000
smtpd_proxy_filter=localhost:10024