You should never send your CV alone without composing a proper email. Here's an example:
To: [Email address of the company you're applying to] Subject: APPLICATION FOR THE POSITION OF
[POSITION TITLE]
Email Body:
Dear [Employer/HR Manager],
I am writing to express my interest in the position of [Position Title] as advertised recently. My qualifications, skills, and experience align closely with your requirements for this role.
Please find my CV and supporting documents attached for your review. I would be delighted to discuss how I can contribute to your team and look forward to hearing from you soon about this exciting opportunity.
