我已经安装了带有 dovecot sasl 和 TLS 的 postfix 服务器。当我尝试从 PHP 代码发送邮件时出现问题,如果我使用登录身份验证类型作为“smtp”,服务器会接受没有任何凭据的连接。如果我将其更改为“登录”,服务器会检查我的凭据,并在用户或密码错误时发出警报。
什么是 SMTP 身份验证以及如何将 postfix 配置为仅接受身份验证用户?
我的main.cf文件中的相关代码
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_local_domain =
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_sasl_auth_enable = yes
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
smtp_tls_security_level = may
smtpd_tls_security_level = may
smtp_tls_note_starttls_offer = yes
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
virtual_alias_domains = $mydomain
virtual_alias_maps = hash:/etc/postfix/virtual
zend mail PHP 代码的一部分,即使密码错误或什么都没有也可以发送邮件。
$options = new SmtpOptions([
'host' => 'mail.host.com',
'port' => '25',
'connection_class' => 'smtp',
'connection_config' => [
'username' => 'user',
'password' => 'bad-password',
'ssl' => 'tls'
]
]);
答案1
以下电子邮件脚本适用于使用 SMTP 身份验证的 PHP 电子邮件发送。您需要使用端口 465 或 587 来发送带有 SMTP 身份验证的电子邮件。
SMTP 默认端口是端口 25。如果您使用端口 25 意味着它将从服务器发送电子邮件而无需 SMTP 身份验证。
从这里下载 phpmailerhttps://github.com/PHPMailer/PHPMailer然后使用下面的编码。
<?php
require_once "vendor/autoload.php";
$mail = new PHPMailer;
//Enable SMTP debugging.
$mail->SMTPDebug = 3;
//Set PHPMailer to use SMTP.
$mail->isSMTP();
//Set SMTP host name
$mail->Host = "smtp.gmail.com";
//Set this to true if SMTP host requires authentication to send email
$mail->SMTPAuth = true;
//Provide username and password
$mail->Username = "[email protected]";
$mail->Password = "super_secret_password";
//If SMTP requires TLS encryption then set it
$mail->SMTPSecure = "tls";
//Set TCP port to connect to
$mail->Port = 587;
$mail->From = "[email protected]";
$mail->FromName = "Full Name";
$mail->addAddress("[email protected]", "Recepient Name");
$mail->isHTML(true);
$mail->Subject = "Subject Text";
$mail->Body = "<i>Mail body in HTML</i>";
$mail->AltBody = "This is the plain text version of the email content";
if(!$mail->send())
{
echo "Mailer Error: " . $mail->ErrorInfo;
}
else
{
echo "Message has been sent successfully";
}