PHP - Notification upon email reciept using CPanel scripts

I am helping re-code a website that allows teachers to text message/email their students about upcoming new/assignments. Students can subscribe to their teacher's notifications by texting/emailing a flag to the inbox.

How would I go about watching these inbox's for incoming messages, to开发者_StackOverflow中文版 then flag php procedures (using cpanel scripts to interact with the email system)?

**If any more information is needed from me to make this more clear, please post.*

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To handle incoming emails using PHP you will need to "pipe" the emails to a script.

• Email Piping with Cpanel
• Simple Email Logger Using cPanel’s Pipe Forwarder

But, if you are specifically wanting to manage a Newsletter/Mailing List, then you may also want to look at something like PHPList as you may need to satisfy legal requirements for handling OptIn/OptOut, etc. actions.