DoNotSendMail.php : please create two simple lines of php-code

Hi dear freelancer, see attached: [login to view URL] DESCRIPTION: The php is loaded inside some website-pages of mine (it is loaded like an image inside the page). Whenever the php is loaded it is reading the Hostname and is sending an email to me. Everything is working well. Everything is okay. YOUR TASK: your task is very simple: I want the php to NOT forward any email IF the hostname contains the word: "telefonica" or "hansenet". That means, if the hostname for example is: Host: [login to view URL] then please make sure the php will not forward any email. I want an exeption. The php shall not do what it would normally do (which is to send an email) Please add that line of code to the existing php script. That's all there is to it. You do not need to test the result. I will implement and test the script on my side myself after you delivered.