所以我一直在使用Gmail并使用php mailer，它工作正常。
我试图对雅虎邮箱做同样的事情，但它似乎确实有效。
我已经尝试了各种端口和设置，但它不起作用。
这是代码：
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>PHPMailer - GMail SMTP 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 'phpmailer/PHPMailerAutoload.php';
//Create a new PHPMailer instance
$mail = new PHPMailer();
//Tell PHPMailer to use SMTP
$mail->isSMTP();
//Enable SMTP debugging
// 0 = off (for production use)
// 1 = client messages
// 2 = client and server messages
$mail->SMTPDebug = 2;
//Ask for HTML-friendly debug output
$mail->Debugoutput = 'html';
//Set the hostname of the mail server
$mail->Host = 'smtp.mail.yahoo.com';
//Set the SMTP port number - 587 for authenticated TLS, a.k.a. RFC4409 SMTP submission
$mail->Port = 587; //995 and 465 port tried but not working
//Set the encryption system to use - ssl (deprecated) or tls
$mail->SMTPSecure = 'tsl';//only ssl tried not working
//Whether to use SMTP authentication
$mail->SMTPAuth = true;
//Username to use for SMTP authentication - use full email address for gmail
$mail->Username = "sender@yahoo.com";
//Password to use for SMTP authentication
$mail->Password = "sender_pass";
//Set who the message is to be sent from
$mail->setFrom('sender_@yahoo.com', 'sender_name');
//Set who the message is to be sent to
$mail->addAddress('receiver@yahoo.com', 'receiver_name');
//Set the subject line
$mail->Subject = 'PHPMailer YMail SMTP test';
$mail->msgHTML(file_get_contents('phpmailer/examples/contents.html'), dirname(__FILE__));
$mail->AltBody = 'This is a plain-text message body';
$mail->addAttachment('phpmailer/examples/images/phpmailer_mini.png');
//send the message, check for errors
if (!$mail->send()) {
echo "Mailer Error: " . $mail->ErrorInfo;
} else {
echo "Message sent!";
}
?>
</body>
</html>
我收到以下错误：
SERVER -> CLIENT: 220 smtp.mail.yahoo.com ESMTP ready
CLIENT -> SERVER: EHLO localhost
CLIENT -> SERVER: AUTH LOGIN
SERVER -> CLIENT: 530 5.7.0 Must issue a STARTTLS command first
CLIENT -> SERVER: QUIT
SERVER -> CLIENT: 221 2.0.0 Bye
SMTP connect() failed.
Mailer Error: SMTP connect() failed.
正确的是 tls，你有一个拼写错误：
$mail->SMTPSecure = 'tls'
2020 - 谷歌把我带到这里是为了类似的事情.
终于让phpmailer与雅虎合作了。
我的发现：
* Ports -> Both ssl/465 and tls/587 work with Yahoo. You dont have to
worry about that.
* From Address -> Cannot be something arbitrary, just use your
yahoo account email here
* ReplyTo Address -> This too must be a valid yahoo account
or you may leave this blank.
和。。。
对于Yahoo与Phpmailer的编程使用，您需要使用另一个passwd（不是您用于通过Web手动登录的密码 - 从非StackOverflow站点获得此提示，也许是专家xchange？ ).此密码称为应用密码。 您必须从您的帐户内部生成它。
Account Info -> Account Settings -> Manage Your App Passwords
-> Select Other App -> Key in 'AutoMailer'
or anything you like and generate the passwd - Its a 4 word passwd.
在你的 phpmailer 脚本中使用此密码。现在一切都应该没事了。
雅虎SMTP主机为：smtp.mail.yahoo.fr，端口：465，SSL是必需的。
所以对于PHPMailer：
$mail->Host = "smtp.mail.yahoo.fr, ";
$mail->Username = "youryahooadd@yahoo.fr";
$mail->Password = "youryahoopw";
$mail->SMTPSecure = "ssl";
$mail->Port = 465;
$mail = new PHPMailer();
$body = "<h1>hello, world!</h1>"
$mail->IsSMTP(); // telling the class to use SMTP
$mail->SMTPAuth = true; // enable SMTP authentication
$mail->SMTPSecure = "ssl"; // sets the prefix to the servier
$mail->Host = "smtp.mail.yahoo.com"; // sets YAHOO as the SMTP server
$mail->Port = 465; // set the SMTP port for the GMAIL server
$mail->Username = "yourusername@gmail.com"; // GMAIL username
$mail->Password = "yourpassword"; // GMAIL password
$mail->SetFrom('name@yourdomain.com', 'First Last');
$mail->AddReplyTo("name@yourdomain.com","First Last");
$mail->Subject = "PHPMailer Test Subject via smtp (Gmail), basic";
$mail->AltBody = "To view the message, please use an HTML compatible email viewer!"; // optional, comment out and test
$mail->MsgHTML($body);
$address = "whoto@otherdomain.com";
$mail->AddAddress($address, "John Doe");
if(!$mail->Send()) {
echo "Mailer Error: " . $mail->ErrorInfo;
} else {
echo "Message sent!";
}