Be polite and use expressions such as; ‘I would appreciate it if you
could...’,’please could you...’ ‘when you have the time, please...’, ‘Do
you think you could...’ etc.
Use a font (fuente) like Times New Roman or Arial.
Write short sentences and paragraphs.
DON’T USE CAPITAL LETTERS!
Include your contact information (full name, company, telephone, address
etc.)
Write a clear subject line (asunto). Make sure it describes or
summarizes your email.
Put your signature on your emails.
Use headings, bullet points (viñetas) and numbering.