src/Autodiscover.php
public function tryTLD()
    {
        $url = 'https://' . $this->tld . self::AUTODISCOVER_PATH;
        return ($this->tryViaUrl($url) ? self::AUTODISCOVERED_VIA_TLD : false);
    }
public function tryTLD()
    {
        $url = 'https://' . $this->tld . self::AUTODISCOVER_PATH;
        return ($this->tryViaUrl($url) ? self::AUTODISCOVERED_VIA_TLD : false);
    }
public function tryTLD ( ) { $ url = 'https://' . $ this -> tld . self :: AUTODISCOVER_PATH ; return ( $ this -> tryViaUrl ( $ url ) ? self :: AUTODISCOVERED_VIA_TLD : false ) ; }
Perform an NTLM authenticated HTTPS POST to the top-level
domain of the email address.

@return integer|boolean
One of the AUTODISCOVERED_VIA_* constants or false on failure.
Perform an NTLM authenticated HTTPS POST to the top - level domain of the email address .