Subject: Application for The job you are applying for, Your full name
Dear Who to address it to,
I am writing to apply for the The job you are applying for role at Company, which I saw on Where you saw the job.
Why you fit, in one or two sentences
I have attached What you are attaching. Thank you for your time; I would welcome the chance to talk about how I could help your team.
Kind regards,
Your full name
Your phone