why would this line send me 2 emails? php

[unwashed potato!]

mail($myEmail, "Contact Form | $custName | Ref: $fId", $body, "From: $myEmail\r\nReply-To: $custEmail\r\nContent-Type: text/html; charset=ISO-8859-1\r\nMIME-Version: 1.0");

send me 2 emails every time. i checked and disabled this one line to make sure there wasn't another line some where and by disabling this one it stops all emails so it's def this line that's doing it.

 

[unwashed potato!]

forget it. figured it out. the file was being called twice