I have a WordPress theme in which employers can post a job that is available in their company with all the requirements details and apply link and one job page gets created where those who are looking for a job can apply by clicking an apply button the job applicant is redirected to an external URL but I want to make some changes whenever an employer posts a job if he wants to receive job application on there EMAIL Address they can put the email address whenever a job applicant click on apply button mailto option popup but there is an issue I am facing whenever employer put an email to receive job applications on the job page apply button I someone click on apply button it’s taking to the domain of the email like the part after @ sign.

$apply_action = get_post_meta($job_id, 'job_action', true);

May I know is this because of the get_post_meta() method or if there could be another reason?
Please help.