$number = "1"; //amount of times to send
$to = "blank@blank.com"; //who you are sending it to
$subject = "No subject"; //Subject
$message = "Message here"; //message
$from = "youremail@email.com";
for ($i=1;$i<=$number;$i++)
{
mail("$to", "$subject", "$message",
"From: $from");
}