AWS SES 与 PHPMailer 使用 SMTP，SMTP 错误：无法进行身份验证？

我收到以下错误：身份验证凭据无效。

我已经仔细检查了用户名（访问密钥 ID）和密码（秘密令牌）一百万次。我仔细检查了发送到服务器的 base64，它是正确的。用户有正确的访问权限。允许来自 EC2 服务器的所有出站流量。 SELinux 已禁用。我已经转义了特殊字符，尝试了不同的凭据。尝试使用具有更多访问权限的用户。

我将 PHPMailer 与 AWS SES 结合使用。

这是代码：

$mail = new PHPMailer;
$mail->isSMTP();
$mail->SMTPAuth = true;
$mail->SMTPSecure = 'tls';
$mail->SMTPDebug = 4;
$mail->setFrom('[email protected] /cdn-cgi/l/email-protection', 'Sender Name');
$mail->addAddress('[email protected] /cdn-cgi/l/email-protection', 'Recipient Name');
$mail->Username = 'AKIAINH6PZ2UQKDK2BTA';
$mail->Password = 'GvMMa7R3fAXZGacl3gyfA86J0RxJLO7FQte9vrof';
$mail->Host = 'email-smtp.us-east-1.amazonaws.com';
$mail->Subject = 'Amazon SES test (SMTP interface accessed using PHP)';
$mail->Body = '<h1>Email Test</h1>';
$mail->Port = 587;
$mail->isHTML(true);
$mail->AltBody = "Email Test\r\nThis email was sent through the 
    Amazon SES SMTP interface using the PHPMailer class.";

if(!$mail->send()) {
    echo "Email not sent. " , $mail->ErrorInfo , PHP_EOL;
} else {
    echo "Email sent!" , PHP_EOL;
}

这是完整的输出：

2017-11-06 01:09:49 Connection: opening to email-smtp.us-east-1.amazonaws.com:587, timeout=300, options=array ()
2017-11-06 01:09:49 Connection: opened
2017-11-06 01:09:49 SMTP -> get_lines(): $data is ""
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "220 email-smtp.amazonaws.com ESMTP SimpleEmailService-2367521455 ZxpFMwcwQB6LGlJ2noyc"
2017-11-06 01:09:49 SERVER -> CLIENT: 220 email-smtp.amazonaws.com ESMTP SimpleEmailService-2367521455 ZxpFMwcwQB6LGlJ2noyc
2017-11-06 01:09:49 CLIENT -> SERVER: EHLO 34.200.216.237
2017-11-06 01:09:49 SMTP -> get_lines(): $data is ""
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "250-email-smtp.amazonaws.com"
2017-11-06 01:09:49 SMTP -> get_lines(): $data is "250-email-smtp.amazonaws.com"
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "250-8BITMIME"
2017-11-06 01:09:49 SMTP -> get_lines(): $data is "250-email-smtp.amazonaws.com250-8BITMIME"
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "250-SIZE 10485760"
2017-11-06 01:09:49 SMTP -> get_lines(): $data is "250-email-smtp.amazonaws.com250-8BITMIME250-SIZE 10485760"
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "250-STARTTLS"
2017-11-06 01:09:49 SMTP -> get_lines(): $data is "250-email-smtp.amazonaws.com250-8BITMIME250-SIZE 10485760250-STARTTLS"
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "250-AUTH PLAIN LOGIN"
2017-11-06 01:09:49 SMTP -> get_lines(): $data is "250-email-smtp.amazonaws.com250-8BITMIME250-SIZE 10485760250-STARTTLS250-AUTH PLAIN LOGIN"
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "250 Ok"
2017-11-06 01:09:49 SERVER -> CLIENT: 250-email-smtp.amazonaws.com250-8BITMIME250-SIZE 10485760250-STARTTLS250-AUTH PLAIN LOGIN250 Ok
2017-11-06 01:09:49 CLIENT -> SERVER: STARTTLS
2017-11-06 01:09:49 SMTP -> get_lines(): $data is ""
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "220 Ready to start TLS"
2017-11-06 01:09:49 SERVER -> CLIENT: 220 Ready to start TLS
2017-11-06 01:09:49 CLIENT -> SERVER: EHLO 34.200.216.237
2017-11-06 01:09:49 SMTP -> get_lines(): $data is ""
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "250-email-smtp.amazonaws.com"
2017-11-06 01:09:49 SMTP -> get_lines(): $data is "250-email-smtp.amazonaws.com"
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "250-8BITMIME"
2017-11-06 01:09:49 SMTP -> get_lines(): $data is "250-email-smtp.amazonaws.com250-8BITMIME"
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "250-SIZE 10485760"
2017-11-06 01:09:49 SMTP -> get_lines(): $data is "250-email-smtp.amazonaws.com250-8BITMIME250-SIZE 10485760"
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "250-STARTTLS"
2017-11-06 01:09:49 SMTP -> get_lines(): $data is "250-email-smtp.amazonaws.com250-8BITMIME250-SIZE 10485760250-STARTTLS"
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "250-AUTH PLAIN LOGIN"
2017-11-06 01:09:49 SMTP -> get_lines(): $data is "250-email-smtp.amazonaws.com250-8BITMIME250-SIZE 10485760250-STARTTLS250-AUTH PLAIN LOGIN"
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "250 Ok"
2017-11-06 01:09:49 SERVER -> CLIENT: 250-email-smtp.amazonaws.com250-8BITMIME250-SIZE 10485760250-STARTTLS250-AUTH PLAIN LOGIN250 Ok
2017-11-06 01:09:49 Auth method requested: UNKNOWN
2017-11-06 01:09:49 Auth methods available on the server: PLAIN,LOGIN
2017-11-06 01:09:49 Auth method selected: LOGIN
2017-11-06 01:09:49 CLIENT -> SERVER: AUTH LOGIN
2017-11-06 01:09:49 SMTP -> get_lines(): $data is ""
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "334 VXNlcm5hbWU6"
2017-11-06 01:09:49 SERVER -> CLIENT: 334 VXNlcm5hbWU6
2017-11-06 01:09:49 CLIENT -> SERVER: QUtJQUlOSDZQWjJVUUtESzJCVEE=
2017-11-06 01:09:49 SMTP -> get_lines(): $data is ""
2017-11-06 01:09:49 SMTP -> get_lines(): $str is "334 UGFzc3dvcmQ6"
2017-11-06 01:09:49 SERVER -> CLIENT: 334 UGFzc3dvcmQ6
2017-11-06 01:09:49 CLIENT -> SERVER: R3ZNTWE3UjNmQVhaR2FjbDNneWZBODZKMFJ4SkxPN0ZRdGU5dnJvZg==
2017-11-06 01:09:50 SMTP -> get_lines(): $data is ""
2017-11-06 01:09:50 SMTP -> get_lines(): $str is "535 Authentication Credentials Invalid"
2017-11-06 01:09:50 SERVER -> CLIENT: 535 Authentication Credentials Invalid
2017-11-06 01:09:50 SMTP ERROR: Password command failed: 535 Authentication Credentials Invalid
SMTP Error: Could not authenticate.
2017-11-06 01:09:50 CLIENT -> SERVER: QUIT
2017-11-06 01:09:50 SMTP -> get_lines(): $data is ""
2017-11-06 01:09:50 SMTP -> get_lines(): $str is "221 Bye"
2017-11-06 01:09:50 SERVER -> CLIENT: 221 Bye
2017-11-06 01:09:50 Connection: closed
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
Email not sent. SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

SES 不支持使用 IAM 用户 AccessKeys 发送电子邮件。 SES 使用 Amazon SES SMTP 凭证。

Sign in to the AWS Management Console and open the Amazon SES console at https://console.aws.amazon.com/ses/.

In the navigation pane, choose SMTP Settings.

In the content pane, choose Create My SMTP Credentials.

In the Create User for SMTP dialog box, you will see that an SMTP user name has been filled in for you. You can accept this suggested user name or enter a different one. To proceed, choose Create.

Choose Show User SMTP Credentials. Your SMTP credentials will be displayed on the screen; copy them and store them in a safe place. You can also choose Download Credentials to download a file that contains your credentials.

以下是文档的链接，该文档解释了不同类型的凭据以及它们如何与 SES 一起使用。

将凭证与 Amazon SES 结合使用 http://docs.aws.amazon.com/ses/latest/DeveloperGuide/using-credentials.html

以下是获取凭据的链接：

获取您的 Amazon SES SMTP 凭证 http://docs.aws.amazon.com/ses/latest/DeveloperGuide/smtp-credentials.html