A parable exists of a recruiter that included an instruction in the job description of the graduate job for candidates to reply by email with their cv and cover letter and include in the subject header of the email the job reference number and job title.
The recruiter immediately rejected every candidate that did not follow that instruction. Which just happened to be 9 out of 10 applicants.
This isn’t just a parable. It’s also a true story. Always read the label.