$mail2 = new PHPMailer();
$mail2->SMTPDebug = 0;
$mail2->isSMTP();
$mail2->SMTPAuth = true;
$mail2->SMTPSecure = 'ssl';
$mail2->Host = $host['value'];
$mail2->Username = $user['value'];
$mail2->Password = $password['value'];
$mail2->Port = $port['value'];
$mail2->setLanguage("tr", "phpmailer/language");
$mail2->CharSet = 'utf-8';
$mail2->isHTML(true); // HTML olarak işaretleme eklendi

$mail2->SetFrom($user['value'], $user['value']);
$mail2->addReplyTo($user['value'], $user['value']);
$mail2->AddAddress($adminMail['value']);
$mail2->Subject = "Yeni Navlun Talebi";

$body = '
<plaintext>
<h1>Yeni Navlun Talebi</h1>
<p>Yeni bir navlun talebiniz var.</p>
<br><br>
<p>İsim: '.$firstname.'</p>
<p>Soyisim: '.$lastname.'</p>
<p>E-posta: '.$email.'</p>
<p>Şirket: '.$company.'</p>
</plaintext>
';

$mail2->Body = $body;