When emailing your resume, don’t leave the body of the email blank. This is IMMEDIATELY DELETED. This is a general message you can write:
Good day or dear sir or madam
Attached is my CV for the candidacy for the advertised position. I look forward to hearing from you.
Best regards,
(insert your name here)
(enter your mobile here, where you can be reached and this should match the mobile number in your CV)
(Insert here your e-mail address)