$text         = "text";
$betreff      = "betreff";

$von_name     = '\/ \'Name\' "Name" \/';
$von_adresse  = "mail@example.net";
$von          = "From: \"" . addslashes($von_name) . "\" <$von_adresse>";

$nach_name    = '\/ \'Name\' "Name" \/';
$nach_adresse = "info@example.net";
$nach         = "\"" . addslashes($nach_name) . "\" <info@example.net>";

mail($nach, $betreff, $text, $von);