Reminders for WP Job Manager is a lightweight plugin for websites and job portals that uses
WP Job Manager to automatically send email reminders to their users to complete their unpublished, incomplete, forgotten, or unpaid job listings.
Reminders for WP Job Manager is compatible with any WordPress theme that uses
WP Job Manager Plugin.
Extract the zip file and just drop the contents in your wp-content/plugins/ directory then activate from your wp-admin/plugins page.