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。用户具有正确的访问权限。允许来自EC2服务器的所有出站流量。SELinux被禁用。我逃脱了特殊字符，尝试了不同的凭据。尝试使用具有更多访问权限的用户。

我正在将PHPMailer与AWS SES一起使用。

这是代码：

$mail = new PHPMailer;
$mail->isSMTP();
$mail->SMTPAuth = true;
$mail->SMTPSecure = 'tls';
$mail->SMTPDebug = 4;
$mail->setFrom('braydenrhancock@gmail.com', 'Sender Name');
$mail->addAddress('braydenrhancock@gmail.com', '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