Postfix:拒绝接收邮件的连接

Postfix:拒绝接收邮件的连接

我正在运行一个 postfix 服务器 - 几个星期都没有问题,但现在邮件被退回。一天后,当我尝试向我的服务器发送邮件时,我收到了来自 gmail 的以下邮件:

[...]
Delivery to the following recipient has been delayed:

     <the mailadress>@<myserver>

Message will be retried for 2 more day(s)

[...] 
[mx.<myserver>. (0): Connection refused]

日志邮件日志邮件错误邮件警告除了一些奇怪的错误之外,都是空的:

postfix/trivial-rewrite[22141]: warning: regexp map /etc/postfix/virtual, line 12: ignoring unrecognized request

虚拟别名也是我上次唯一改变的东西(但之后它仍然有效)。

有什么提示可以告诉我如何解决此问题吗?

请注意,从本地用户向本地用户发送邮件是有效的。

尽管“127.0.0.2”对我来说看起来很奇怪,但还有一个开放的端口......

$ netstat -a|grep smtp
tcp        0      0 127.0.0.2:smtp          *:*                     LISTEN     
tcp        0      0 localhost.localdom:smtp *:*                     LISTEN   

我的main.cf:

smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
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.

myhostname = <my servername>
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
#virtual_alias_maps = regexp:/etc/postfix/virtual
virtual_alias_maps = hash:/etc/postfix/virtual

myorigin = /etc/mailname
mydestination = <myserver>, localhost
relayhost = <my external smtp>
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = loopback-only
default_transport = smtp
relay_transport = smtp
inet_protocols = ipv4

答案1

你的inet_interfaces范围设置为loopback-only。这就是本地邮件传递正常运行的原因。

将其更改为all,它将在所有接口上进行监听。

答案2

显然,您的电子邮件服务器只监听环回地址,如netstat输出所示。您可以尝试在配置中注释掉以下行。

#inet_interfaces = loopback-only

不要忘记重新加载/重新启动您的 postfix 进程。最好使用 来确认此更改是否成功netstat

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