I am into IT Recruitment field. I am not able to get closures. I know including candidates perfect resume, email content should be great to draw the vendors attention to our emails. I need more clarit?

As an IT recruiter, I am constantly striving to improve my email outreach and get the desired response from vendors. However, I often struggle with getting closures and standing out among the numerous emails that vendors receive. I understand the importance of including a candidate's perfect resume and crafting compelling email content to catch their attention. But I am seeking more clarity on how to truly make my emails stand out and increase my chances of success in this competitive field.