You may wish to send bulk email to your subscribers, for this purpose you can use phpList software, available in Softaculous Apps Installer.
1. Log in to your cPanel account and scroll down to Softaculous Apps Installer
2. In Categories select Mails
3. Find phpList
Script ant press Install
4. In Software Setup GUI select directory where to install phpList, choose Admin Username
and Admin Password
, which will be used to log in.
5. Press Install
and wait until installation is complete.
Once done, you can log into admin console through earlier selected address, like https://yourdomain.tld/phplist/admin/
and send emails.