我已经在 CentOS 上设置了 postfix，并尝试使用 smtp 身份验证配置 phpmailer。
phpmailer只起作用如果我把 0.0.0.0/0 放在我的网络在 postfix main.conf 中
mynetworks = 127.0.0.0/8, [::ffff:127.0.0.0]/104, [::1]/128, 0.0.0.0/0
但在这个帖子中（如何配置 PostFix 以允许其他机器通过它发送电子邮件？）有人说不要在 mynetworks 中输入 0.0.0.0/0，因为它会导致垃圾邮件问题等。
有人能建议我该怎么做才能让我的服务器免受垃圾邮件问题的困扰并且还能让 phpmailer 正常工作吗？
queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
myhostname = example.com
mydomain = example.com
myorigin = /etc/mailname
inet_interfaces = all
inet_protocols = all
mydestination = localhost.localdomain localhost $mydomain
virtual_alias_maps = hash:/etc/postfix/virtual
unknown_local_recipient_reject_code = 550
mynetworks = 127.0.0.0/8, [::ffff:127.0.0.0]/104, [::1]/128, 0.0.0.0/0
smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, permit
relayhost =
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/postfix/virtual
mailbox_size_limit = 0
recipient_delimiter = +
home_mailbox = Maildir/
smtpd_use_tls = yes
#smtpd_tls_auth_only = yes
smtpd_tls_key_file = /etc/pki/tls/private/my.key
smtpd_tls_cert_file = /etc/pki/tls/certs/my.crt
smtpd_tls_CAfile = /etc/pki/tls/certs/my.ca-bundle
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
tls_random_source = dev:/dev/urandom
#smtpd_tls_protocols = !SSLv2, !SSLv3
smtpd_tls_security_level = may
#SASL SMTP Authentication
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_local_domain = $myhostname
broken_sasl_auth_clients = yes
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_authenticated_header = yes
debug_peer_level = 2
debugger_command =
PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
ddd $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/sbin/sendmail.postfix
newaliases_path = /usr/bin/newaliases.postfix
mailq_path = /usr/bin/mailq.postfix
setgid_group = postdrop
html_directory = no
manpage_directory = /usr/share/man
sample_directory = /usr/share/doc/postfix-2.6.6/samples
readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES
如果我删除 0.0.0.0/0 并仅保留 mynetworks = 127.0.0.0/8, [::ffff:127.0.0.0]/104, [::1]/128
phpmailer 说无法发送邮件..
phpmailer 调试...
2014-11-23 04:57:10 SERVER -> CLIENT: 220 myhost.com ESMTP Postfix
2014-11-23 04:57:10 CLIENT -> SERVER: EHLO www.myhost.com
2014-11-23 04:57:10 SERVER -> CLIENT: 250-myhost.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
2014-11-23 04:57:10 CLIENT -> SERVER: AUTH LOGIN
2014-11-23 04:57:10 SERVER -> CLIENT: 334 VXNlcm5hbWU6
2014-11-23 04:57:10 CLIENT -> SERVER: XXXX
2014-11-23 04:57:10 SERVER -> CLIENT: 334 UGFzc3dvcmQ6
2014-11-23 04:57:10 CLIENT -> SERVER: XXXX
2014-11-23 04:57:10 SERVER -> CLIENT: 235 2.7.0 Authentication successful
2014-11-23 04:57:10 CLIENT -> SERVER: MAIL FROM: [email protected]
2014-11-23 04:57:10 SERVER -> CLIENT: 250 2.1.0 Ok
2014-11-23 04:57:10 CLIENT -> SERVER: RCPT TO: [email protected]
2014-11-23 04:57:10 SERVER -> CLIENT: 554 5.7.1 :Relay access denied
2014-11-23 04:57:10 SMTP ERROR: RCPT TO command failed: 554 5.7.1 : Relay access denied
2014-11-23 04:57:10 CLIENT -> SERVER: QUIT
2014-11-23 04:57:10 SERVER -> CLIENT: 221 2.0.0 Bye
2014-11-23 04:57:10 SMTP Error: The following recipients failed: [email protected] Mailer Error: SMTP Error: The following recipients failed: [email protected]
和 Postfix 错误日志
myhost postfix/smtpd[8272]: connect from myhost.com[168.x.x.x]
myhost postfix/smtpd[8272]: NOQUEUE: reject: RCPT from myhost.com[168.x.x.x]:
554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]>
to=<[email protected]> proto=ESMTP helo=<www.myhost.com>Nov 22 23:57:10 myhost
postfix/smtpd[8272]: disconnect from myhost.com[168.x.x.x]
Php 邮件程序设置（我只更改了 php 邮件程序的索引。其他文件保持原样/不变）
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>PHPMailer - SMTP email test</title>
</head>
<body>
<?php
//SMTP needs accurate times, and the PHP time zone MUST be set
//This should be done in your php.ini, but this is how to do it if you don't have access to that
date_default_timezone_set('Etc/UTC');
require 'PHPMailerAutoload.php';
//Create a new PHPMailer instance
$mail = new PHPMailer();
$mail->isSMTP();
$host = "myhost.com";
$username = "ara";
$password = "ara";
$Port = 25;
$mail->FromName = "Mail from gottsf3 ";
$mail->From = "[email protected]";
$mail->Host = $host;
$mail->Port = $Port;
//$mail->SMTPSecure = 'tls'; //optional
$mail->SMTPAuth = true;
$mail->Username = $username;
$mail->Password = $password;
$mail->AddAddress("[email protected]");
$mail->Subject = 'gottsf3PHPMailer - SMTP email test';
$mail->Body = 'This is a plain-text message body';
$mail->SMTPDebug = 2;
//send the message, check for errors
if (!$mail->send()) {
echo "Mailer Error: " . $mail->ErrorInfo;
} else {
echo "Message sent!";
}
?>
</body>
</html>
答案1
您应该配置 phpmailer 来连接到localhost，而不是机器的主机名（然后它将使用其外部 IP 地址进行连接）。
Localhost 允许通过 postfix 中继邮件mynetworks，但是当您使用主机名连接时，是通过公共 IP 地址，而公共 IP 地址是不允许中继的。
答案2
我可以通过在后缀中添加以下内容来修复/etc/postfix/master.cf。
smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination
中继访问被拒绝不仅适用于 PHPmailer，也适用于任何客户端 Outlook、Thunderbird 等...放置 localhost 是一种解决方法，而不是完全解决方案。例如，当 PHPmailer/web 服务器是不同的服务器时，它与 postfix 电子邮件服务器隔离，您不能放置 localhost。
有关 smtpd_recipient_restrictions 的更多信息，请点击这里 https://stackoverflow.com/questions/18318789/linux-postfix-dovecot-554-relay-access-denied