Setting Up PHPMailer with Microsoft Azure - Encountering Errors

[sivamatta94]

Hello,

I am trying to set up PHPMailer with my Microsoft Azure account, but I am encountering the following errors. Can someone help me resolve the issue?

Here's what I've done so far:

Step 1: Executed the following command to install the required dependencies using Composer:

composer require phpmailer/phpmailer=6.9.1 greew/oauth2-azure-provider=1.0.2

Step 2: Configured the get_oauth_token.php file with the following parameters:
Provider
ClientId
ClientSecret
TenantId
Step 3: Created an index.php file to access the refresh token. After that, I utilized the script available at GitHub, and encountered the following error:

2024-02-13 23:17:31 SERVER -> CLIENT: 220 FR5P281CA0023.outlook.office365.com Microsoft ESMTP MAIL Service ready at Tue, 13 Feb 2024 23:17:31 +0000
2024-02-13 23:17:31 CLIENT -> SERVER: EHLO localhost
2024-02-13 23:17:31 SERVER -> CLIENT: 250-FR5P281CA0023.outlook.office365.com Hello [2a0c:d242:9013:e600:4138:bc71:9423:3ccf]250-SIZE 157286400250-PIPELINING250-DSN250-ENHANCEDSTATUSCODES250-STARTTLS250-8BITMIME250-BINARYMIME250-CHUNKING250 SMTPUTF8
2024-02-13 23:17:31 CLIENT -> SERVER: STARTTLS
2024-02-13 23:17:31 SERVER -> CLIENT: 220 2.0.0 SMTP server ready
2024-02-13 23:17:31 CLIENT -> SERVER: EHLO localhost
2024-02-13 23:17:31 SERVER -> CLIENT: 250-FR5P281CA0023.outlook.office365.com Hello [2a0c:d242:9013:e600:4138:bc71:9423:3ccf]250-SIZE 157286400250-PIPELINING250-DSN250-ENHANCEDSTATUSCODES250-AUTH LOGIN XOAUTH2250-8BITMIME250-BINARYMIME250-CHUNKING250 SMTPUTF8

Fatal error: Uncaught League\OAuth2\Client\Provider\Exception\IdentityProviderException: AADSTS9002313: Invalid request. Request is malformed or invalid. Trace ID: c1ff9033-06e8-4e51-bb90-c6f5b87e0200 Correlation ID: 03d51264-6938-4a96-af7f-17b8600f759e Timestamp: 2024-02-13 23:17:32Z in C:\MAMP\htdocs\zmaillatest\vendor\greew\oauth2-azure-provider\src\Provider\Azure.php:89 Stack trace: #0 C:\MAMP\htdocs\zmaillatest\vendor\league\oauth2-client\src\Provider\AbstractProvider.php(726): Greew\OAuth2\Client\Provider\Azure->checkResponse(Object(GuzzleHttp\Psr7\Response), Array) #1 C:\MAMP\htdocs\zmaillatest\vendor\league\oauth2-client\src\Provider\AbstractProvider.php(635): League\OAuth2\Client\Provider\AbstractProvider->getParsedResponse(Object(GuzzleHttp\Psr7\Request)) #2 C:\MAMP\htdocs\zmaillatest\vendor\phpmailer\phpmailer\src\OAuth.php(115): League\OAuth2\Client\Provider\AbstractProvider->getAccessToken(Object(League\OAuth2\Client\Grant\RefreshToken), Array) #3 C:\MAMP\htdocs\zmaillatest\vendor\phpmailer\phpmailer\src\OAuth.php(128): PHPMailer\PHPMailer\OAuth->getToken() #4 C:\MAMP\htdocs\zmaillatest\vendor\phpmailer\phpmailer\src\SMTP.php(618): PHPMailer\PHPMailer\OAuth->getOauth64() #5 C:\MAMP\htdocs\zmaillatest\vendor\phpmailer\phpmailer\src\PHPMailer.php(2262): PHPMailer\PHPMailer\SMTP->authenticate('', '', 'XOAUTH2', Object(PHPMailer\PHPMailer\OAuth)) #6 C:\MAMP\htdocs\zmaillatest\vendor\phpmailer\phpmailer\src\PHPMailer.php(2062): PHPMailer\PHPMailer\PHPMailer->smtpConnect(Array) #7 C:\MAMP\htdocs\zmaillatest\vendor\phpmailer\phpmailer\src\PHPMailer.php(1689): PHPMailer\PHPMailer\PHPMailer->smtpSend('Date: Wed, 14 F...', '--b1=_npek9gfjj...') #8 C:\MAMP\htdocs\zmaillatest\vendor\phpmailer\phpmailer\src\PHPMailer.php(1523): PHPMailer\PHPMailer\PHPMailer->postSend() #9 C:\MAMP\htdocs\zmaillatest\index.php(154): PHPMailer\PHPMailer\PHPMailer->send() #10 {main} thrown in C:\MAMP\htdocs\zmaillatest\vendor\greew\oauth2-azure-provider\src\Provider\Azure.php on line 89
2024-02-13 23:17:32 CLIENT -> SERVER: QUIT
2024-02-13 23:17:32 SERVER -> CLIENT: 221 2.0.0 Service closing transmission channel

Any assistance or guidance on resolving these errors would be greatly appreciated. Thank you in advance for your support!

Best regards,
Siva Matta

[XL-2000]

Fatal error: Uncaught League\OAuth2\Client\Provider\Exception\IdentityProviderException: AADSTS9002313: Invalid request. Request is malformed or invalid. ... in C:\MAMP\htdocs\zmaillatest\vendor\greew\oauth2-azure-provider\src\Provider\Azure.php:89

It seems not to be a PHPMailer error/problem but an OAuth grant problem when utilizing the Azure provider.
Maybe look in that space for a solution instead of here?

[decomplexity]

The flow appears to be failing at the point where the refresh token is exchanged for an access token. Worth a quick check to confirm that you are actually giving the provider a refresh token (from running get_oauth_token.php) and not an access token or even an auth code.

[sivamatta94]

Hello Decomplexity,

Just wanted to drop you a quick note to say thank you for your help with the OAuth2 flow issue. Your suggestion to double-check the token type was super helpful, and it got me back on track. I really appreciate your support!

Thanks again!

Best regards,
Siva Matta