Cold emails that get responses are personalized, concise, and compelling. Begin with a catchy subject line, and then introduce yourself and your purpose. State the value you can offer and explain why you are reaching out to the recipient specifically. Include a clear call to action, such as asking for a meeting or a reply. Keep the email short and easy to read, and make sure to follow up if you don't receive a response within a reasonable amount of time.
https://smtpget.com/cold-email-that-converts/