configurationpostfix以在Google Compute Engine实例中使用Google Apps SMTP中继

用apt-get install postfix 。 当被问及select“卫星系统”还是select与智能主机。 现在接受所有其他的默认设置。

根据以下文件编辑您的main.cf：

/etc/postfix/main.cf中

 # a file which should contain the google apps domain myorigin = /etc/mailname # if your google apps domain is in mydestination, remove it, or postfix will attempt to deliver your mail locally mydestination = ...., localhost # Google Apps Relay SMTP, must use Port 587 because, 25 is blocked relayhost = [smtp-relay.gmail.com]:587 # Force ehlo behavior smtp_always_send_ehlo = yes smtp_helo_name = <yourappsdomainhere> # Enable TLS smtp_use_tls=yes smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt # limit smtp to loopback interface & compute engine doesn't support ipv6 inet_interfaces = loopback-only inet_protocols = ipv4 # These lines can be used, if the result is not as expected # debug_peer_list = smtp-relay.gmail.com # debug_peer_level = 2 

用service postfix restart启动重新启动postfix。 一切都应该好。

这可能不是最干净的所有解决scheme，但它对我有用。

我已经search了几天的互联网find你和我正在寻找的解决scheme。

请确保您已经在您的Google Apps帐户的Apps> Google Apps> Gmail>高级设置下设置了SMTP中继设置，如下所示：

确保你已经安装了postfix和libsasl2-modules。

 sudo apt-get update sudo apt-get install postfix sudo apt-get install libsasl2-modules 

后缀configuration

在Postfixconfiguration期间设置以下设置：

• 一般types的邮件configuration：带有智能主机的Internet。
• 邮件名称： example.com（完全合格的域名）
• 中继主机： [smtp.gmail.com]：587

你的/etc/postfix/main.cf文件应该如下所示：

 myhostname = yourdomain.com 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 smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = yourdomain.com relayhost = [smtp.gmail.com]:587 mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all # Use IPv4 protocol inet_protocols = ipv4 # enable SASL authentication smtp_sasl_auth_enable = yes # disallow methods that allow anonymous authentication. smtp_sasl_security_options = noanonymous # where to find sasl_passwd smtp_sasl_password_maps = hash:/etc/postfix/sasl/passwd # Enable STARTTLS encryption smtp_use_tls = yes # where to find CA certificates smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt 

创build一个/etc/postfix/sasl/passwd文件并添加你的Google Apps用户名和密码，如下所示：

 [smtp.gmail.com]:587 [email protected]:yourpassword 

现在通过运行postmap命令为Postfix创build散列数据库文件：

 sudo postmap /etc/postfix/sasl/passwd 

保护您的密码和哈希数据库文件，以便只有root可以读取和写入它们：

 sudo chown root:root /etc/postfix/sasl/passwd /etc/postfix/sasl/passwd.db sudo chmod 0600 /etc/postfix/sasl/passwd /etc/postfix/sasl/passwd.db 

重新启动Postfix作者：

 sudo /etc/init.d/postfix restart 

如果你已经安装了mailutils你可以testing发送邮件：

 echo "body of your email" | mail -s "This is a Subject" -a "From: [email protected]" [email protected] 

如果您的邮件没有收到，请检查您的mail.log文件是否有任何错误消息：

 sudo tail -f /var/log/mail.log 

我写了一篇更详细的文章： http : //dev.robbertvermeulen.com/postfix-google-apps-smtp-relay-google-compute-engine/