我遇到了问题，我不能通过使用例如Thunderbird发送邮件 – 但从本地机器，邮件发送完美的罚款。 邮件服务器configuration也dovecot – 这是工作正常和spamassassin – 也工作正常。 我可能错过了一些明显的东西，但我找不到它。
在日志中，当我尝试通过远程主机上的Thunderbird发送邮件时遇到了这个问题：
5月22日14:06:16 d7205 postfix / smtpd [11560]：build立来自unknown [xyzc]的TLS连接 5月22日14:06:16 d7205 postfix / smtpd [11560]：从未知的[xyzc]build立的匿名TLS连接：密码为DHE-RSA-CAMELLIA256-SHA（256/256位）的TLSv1。 5月22日14:06:17 d7205 postfix / smtpd [11560]：NOQUEUE：拒绝来自unknown的RCPT [xyzc]：554 5.7.1：中继访问被拒绝; 从=到=原型= ESMTP helo = 5月22日14:06:18 d7205 postfix / smtpd [11560]：断开与未知[xyzc]
当前postfixconfiguration（后缀-n）：
alias_database = hash：/ etc / aliases
alias_maps = hash：/ etc / aliases
bounce_queue_lifetime = 2d
broken_sasl_auth_clients =是
command_directory = / usr / sbin
config_directory = / etc / postfix
daemon_directory = / usr / libexec / postfix
data_directory = / var / lib / postfix
debug_peer_level = 2
home_mailbox = Maildir /
html_directory = no
inet_interfaces = all
inet_protocols = ipv4
mail_owner =后缀
mail_spool_directory = / var / spool / mail
mailbox_size_limit = 256000000
mailq_path = /usr/bin/mailq.postfix
manpage_directory = / usr / share / man
maximal_queue_lifetime = 3d
mydestination = pcre：/ etc / postfix / mydomains
mydomain = domain.tld
myhostname = domain.tld
mynetworks = 192.168.1.0/24，127.0.0.0/8
myorigin = $ mydomain
newaliases_path = /usr/bin/newaliases.postfix
queue_directory = / var / spool / postfix
queue_run_delay = 30s
readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES
recipient_delimiter = +
relay_domains = $ mydestination
sample_directory = /usr/share/doc/postfix-2.6.6/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtp_sasl_security_options = noplaintext，不知名
smtp_tls_cert_file = /etc/pki/tls/certs/postfix.crt
smtp_tls_key_file = /etc/pki/tls/certs/postfix.key
smtp_tls_note_starttls_offer =是
smtp_tls_session_cache_database = btree：$ {queue_directory} / smtp_scache
smtp_use_tls =是
smtpd_banner = $ myhostname ESMTP
smtpd_recipient_restrictions = reject_unauth_destination，许可
smtpd_sasl_auth_enable =是
smtpd_sasl_local_domain = $ myhostname
smtpd_sasl_path = private / auth
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_sender_restrictions = permit_sasl_authenticated，reject_unknown_sender_domain，reject_non_fqdn_sender，reject_unknown_address，permit
smtpd_tls_auth_only =否
smtpd_tls_cert_file = /etc/pki/tls/certs/postfix.crt
smtpd_tls_key_file = /etc/pki/tls/certs/postfix.key
smtpd_tls_loglevel = 1
smtpd_tls_received_header =是
smtpd_tls_session_cache_database = btree：$ {queue_directory} / smtpd_scache
smtpd_tls_session_cache_timeout = 3600s
smtpd_use_tls =是
tls_random_source = dev：/ dev / urandom
unknown_local_recipient_reject_code = 550
和maste.cf看起来像这样：
smtp inet n - - - - smtpd
提交inet n - n - - smtpd
＃-o smtpd_tls_security_level =encryption
＃-o smtpd_sasl_auth_enable =是
＃-o smtpd_client_restrictions = permit_sasl_authenticated，拒绝
＃-o milter_macro_daemon_name = ORIGINATING
-o content_filter = spamassassin
smtps inet n - - - - smtpd
＃-o smtpd_tls_wrappermode =是
＃-o smtpd_sasl_auth_enable =是
＃-o smtpd_client_restrictions = permit_sasl_authenticated，拒绝
＃-o milter_macro_daemon_name = ORIGINATING
＃628 inet n - n - - qmqpd
皮卡fifo n - n 60 1皮卡
清理unix n - n - 0清理
qmgr fifo n - n 300 1 qmgr
#qmgr fifo n - n 300 1 oqmgr
tlsmgr unix - - 1000？ 1 tlsmgr
重写unix - - n - - 平凡重写
反弹unix - - n - 0反弹
推迟unix - - n - 0反弹
跟踪unix - - n - 0反弹
validationunix - n - 1validation
flush unix n - n 1000？ 0冲水
proxymap unix - - n - - proxymap
proxywrite unix - - n - 1代理映射
smtp unix - - n - - smtp
＃将邮件转发为备份MX时，禁用fallback_relay以避免MX循环
中继unix - - n - - smtp
-o smtp_fallback_relay =
＃-o smtp_helo_timeout = 5 -o smtp_connect_timeout = 5
showq unix n - n - - showq
错误unix - - n - - 错误
重试unix - - n - - 错误
丢弃unix - - n - - 丢弃
本地unix - nn - - 本地
虚拟的unix - nn - - 虚拟的
lmtp unix - - n - - lmtp
铁砧unix - - n - 1铁砧
scache unix - - n - 1 scache
dovecot unix - nn - - pipe道
flags = DRhu argv = / usr / lib / dovecot / deliver -d $ {recipient}
spamassassin unix - nn - - pipe
user = spamd argv = / usr / bin / spamc -f -e
/ usr / sbin / sendmail -oi -f $ {sender} $ {recipient}
问题是，我没有在后缀configuration中的这个特定的设置：
smtpd_recipient_restrictions =
permit_sasl_authenticated，
permit_mynetworks，
check_relay_domains