Are there any specific PHP functions or methods that can be used to retrieve the name of an SMTP server for email transmission?

To retrieve the name of an SMTP server for email transmission in PHP, you can use the `getmxrr()` function to get the MX records for a domain, which will provide you with the SMTP server address. You can then extract the server name from the MX record. 

$domain = 'example.com';
$mxRecords = [];
getmxrr($domain, $mxRecords);
$smtpServer = $mxRecords[0];
echo "SMTP Server: " . $smtpServer;

Keywords

PHP SMTP server email transmission functions methods

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