<?php
    require('phpmailer/PHPMailerAutoload.php');
    require('phpmailer/class.phpmailer.php');
    require('phpmailer/class.smtp.php');
    require('phpmailer/class.pop3.php');

    $to = "thiago.falcao@methodinformatica.com.br"; // this is your Email address
    $name = $_POST['nmContato'];
    $from = $_POST['email']; // this is the sender's Email address
    $subject = $_POST['assunto'];
    $message = $name . " enviou a mensagem:" . "nn" . $_POST['txt_contato'];

    $mail = new PHPMailer();
    $mail->IsSMTP();
    $mail->CharSet="UTF-8";
    $mail->Debugoutput = 'html';
    $mail->Host = 'email-ssl.com.br';
    $mail->Port = 465;
    $mail->SMTPSecure = 'ssl';
    $mail->SMTPAuth = true;
    $mail->IsHTML(true);
    $mail->Username = 'thiago.falcao@methodinformatica.com.br';
    $mail->Password = 'senhadoemail';
    $mail->From = $from; //o erro ocorre quando esse valor é thiago.friedman@hotmail.com
    $mail->FromName = $name;
    $mail->AddAddress($to);
    $mail->Subject = $subject;
    $mail->AltBody = "To view the message, please use an HTML compatible email viewer!";
    $mail->Body = $message;
    $mail->SMTPDebug = 1;
    if(!$mail->Send()){
        echo 'Mailer Error: ' . $mail->ErrorInfo;
    }else{
        echo 'Message has been sent';
    }
?>