What are some alternative methods to creating email addresses programmatically if the 1&1 Control-Center is not accessible?

If the 1&1 Control-Center is not accessible for creating email addresses programmatically, you can use the 1&1 API to automate the process. By utilizing the API, you can send requests to the 1&1 servers to create email addresses without needing access to the Control-Center interface.

// Example PHP code to create an email address using the 1&1 API
$api_key = 'your_api_key_here';
$domain = 'your_domain_here';
$email = 'new_email_address_here';

$url = 'https://api.ionos.com/email/v1/accounts/'.$email;
$data = array(
    'password' => 'new_email_password_here',
    'email' => $email,
    'firstname' => 'John',
    'lastname' => 'Doe'
);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    'Content-Type: application/json',
    'X-API-Key: '.$api_key
));

$result = curl_exec($ch);
curl_close($ch);

$response = json_decode($result, true);

if(isset($response['email'])) {
    echo 'Email address '.$response['email'].' successfully created!';
} else {
    echo 'Error creating email address: '.$response['messages'][0]['message'];
}