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Send Email by PHPMailer using SMTP


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First of all Thank you all,

My goal is to create a module that sends mail to anyone via PHPmailer using SMTP configuration.

$mail->isSMTP();                                      // Set mailer to use SMTP
        $mail->Host = 'mail.example.com';  // Specify main and backup SMTP servers
        $mail->SMTPAuth = true;                               // Enable SMTP authentication
        $mail->Username = 'user@example.com';                 // SMTP username
        $mail->Password = 'xxxxxxx';                           // SMTP password
        $mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
        $mail->Port = 25;                                    // TCP port to connect to
        $mail->From = 'from@example.com';
        $mail->FromName = 'Mailer';
        $mail->addAddress($address);     // Add a recipient
        $mail->addReplyTo('info@example.com', 'Information');

Now for username and password, I need them to be dynamic, not manually entered. In that case, I would like to know where in the WHMCS database does this information get saved, since I have already checked the "tblconfiguration" table.


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  • 2 months later...

@berstein The "Mail Provider" settings are not reflected in the `tblconfiguration` SMTP* fields (I believe this is from version 8.0 onwards). You can verify by setting the "SMTP Host" value and then checking `SMTPHost` in the DB.  There are also many more "Mail Provider" options in UI than related fields in `tblconfiguration`. 

Does anyone know where to lookup the "Mail Provider" settings in WHMCS? I've done a complete dump of the database and grep of the file system and haven't been able to find them yet. 

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When 'MailConfig' is decrypted, the structure is like:

  "module": "SmtpMail",
  "configuration": {
    "encoding": "",
    "service_provider": "Generic",
    "host": "",
    "port": "25",
    "auth_type": "plain",
    "username": "",
    "password": "",
    "oauth2_callback_url": "https://site/clients/admin/setup/mail/oauth2/callback",
    "oauth2_client_id": "",
    "oauth2_client_secret": "",
    "oauth2_refresh_token": "",
    "secure": "none",
    "debug": ""


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@ghsa Is the "Mail Provider" you are looking the same "Mail Provider" in the "Configure Mail Provider" window?

If yes, I think the "module" is what you are looking for since the options for mail providers are equal with the mail modules inside WHMCS.
Please correct me if I'm wrong or if I misunderstand the question.



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