I am using a shared windows hosting in which sending 120 mails/hour is allowed though php code. i have a php page to send emails more than 200 mails at a time.But i want to
Use a script on Google AppEngine to "ping" yours (Scheduled Tasks to be more precise). It's free to use.
You can schedule a task in Windows - control panel->administrative tools is where you find task scheduler.
Use PHP Cron Jobs with cPanel
cPanel Simple Cron
you can get started with the simple cron tool built into cPanel. The url for it is:
https://www.yoursite.com/page.php
The command to run:
/usr/local/bin/php -f /home/(username)/public_html/page.php
Next you'll want to select an option from all the select boxes. Remember to select an option in each box. If you want something to run every hour, select Minute: 60; Hour:Every; Day: Every; Month: Every; Weekday: Every;
Click save and you are all set! You'll get an email every time the cron job runs, but if you don't want to get it - put :blackhole: into the output email field at the top.