我正在尝试在 ubuntu 上设置 postfix。我只想允许从本地连接发送电子邮件而无需身份验证。当我尝试发送电子邮件时，我收到以下错误：
550 5.1.1 <[email protected]>: Recipient address rejected: gmail.com
554 5.5.1 Error: no valid recipients
无论将目标地址设置为何值，都会发生此错误。我已经使用以下方法进行了测试：
# telnet localhost 25
Trying ::1...
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 server.domain.com ESMTP Postfix (Ubuntu)
ehlo localhost
mail from: root@localhost
rcpt to: [email protected]
data
Subject: My first mail on Postfix
Hi,
Are you there?
regards,
Admin
.
quit250-server.domain.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
250 2.1.0 Ok
550 5.1.1 <[email protected]>: Recipient address rejected: gmail.com
554 5.5.1 Error: no valid recipients
221 2.7.0 Error: I can break rules, too. Goodbye.
Connection closed by foreign host.
我的 main.cf 文件如下所示：
# 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 $mail_name (Ubuntu)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
readme_directory = no
# TLS parameters
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${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 = server.domain.comt
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = server.domain.com, localhost
relayhost =
mynetworks = 127.0.0.0/8
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = loopback-only
default_transport = error
relay_transport = error
inet_protocols = ipv4
不确定如何继续，因为谷歌没有找到任何与我的问题相关的内容。
答案1
通常这是主机名/DNS问题。我假设server.domain.com不是服务器的实际主机名，但请确保它是正确的FQDN。如果它不是具有真实外部主机名的面向互联网的服务器，请使用.local域（我有时在家中使用.internal以避免与zeroconf冲突）。检查您的主机文件，/etc/hostname，/etc/mailname以及myhostname，mydestination，myorigin的值。
另外，上面的配置中，myhostname 有一个拼写错误。