    SMTP :: boolean fromhost ( string hostname, boolean &havemx )

    Returns TRUE if has been successfully set, FALSE if not.

    This function 'FromHost' is designed for anti-spam/bulk mail prevention on client and/or relay mail delivery.

    Notice: one of MX zone for string hostname must have same IP address (external/unique) with this mail sender.

    Example:

    $mail = new SMTP;

    $mail->Delivery('client');

    $mail->FromHost('maildomain.net', $havemx) OR die('error');

    echo $havemx ? 'Ok' : 'Ok, but doesn't have MX zone!';

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    Last update: Friday, June 16, 2006