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带有后缀的 smtp 身份验证被拒绝，并出现错误“需要完全限定的主机名”

tag-icon • tag-icon linux debian postfix smtp
带有后缀的 smtp 身份验证被拒绝，并出现错误“需要完全限定的主机名”

我在 debian squeeze 上由 postfix + dovecot + roundcube 组成的邮件服务器遇到了一些问题。

从 roundcube 发送和接收邮件非常顺利。但我无法从 Outlook 等外部客户端发送邮件。我仍然可以完美地从 POP3 或 IMAP 读取邮件。我总是遇到同样的错误，但我在互联网上找不到解决方案：

client.hostname: Helo command rejected: need fully-qualified hostname; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=client.hostname

这是我的 postfix 的 main.cf：

# 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 = 1h

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.

myhostname = coruscant.kilkoa.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
#mydestination = mail.kilkoa.com, 9274hd61061, localhost.localdomain, localhost
#relayhost =
mynetworks = 213.246.61.0/24 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all

virtual_uid_maps = static:3000
virtual_gid_maps = static:3000
virtual_mailbox_base = /home/mailer

virtual_transport = dovecot

virtual_mailbox_domains = mysql:/etc/postfix/mysql_virtual_mailbox_domains.cf
virtual_mailbox_maps = mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf
virtual_alias_maps = mysql:/etc/postfix/mysql_virtual_alias_maps.cf
relay_domains = mysql:/etc/postfix/mysql_relay_domains.cf

smtpd_recipient_restrictions =
  permit_mynetworks,
  permit_sasl_authenticated,
  reject_non_fqdn_hostname,
  reject_non_fqdn_sender,
  reject_non_fqdn_recipient,
  reject_unauth_destination,
  reject_unauth_pipelining,
  reject_invalid_hostname

smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous


dovecot_destination_recipient_limit = 1

有人知道吗？

答案1

在 SMTP 事务中，当有人向您发送邮件时，对话从试图向您发送邮件的人开始，说如下内容：

HELO rmotehostname.domain.com

您收到的错误：

: Helo command rejected: need fully-qualified hostname; from= to= proto=ESMTP helo=

表示他们发送的主机名不是完全合格的主机名。因此，他们不会发送“remotehostname.domain.com”之类的内容，而是只发送“remotehostname”。您拒绝此操作是因为您reject_non_fqdn_hostname在 中明确设置了smtpd_recipient_restrictions。

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