SMTP::Hello

Sends the HELO command to the smtp server.

This makes sure that we and the server are in the same known state. Implements from rfc 821: HELO <SP> <domain> <CRLF> SMTP CODE SUCCESS: 250 SMTP CODE ERROR : 500, 501, 504, 421

Signature

public function Hello([string
        $host = ''] )

Parameters

$host

Returns

bool