Word-of-mouth leads in Wichita, HR coordinator here

A friend who works at a local manufacturer says there are openings not advertised online. Thank you in advance. They like a brief email with a résumé. What do you write in a cold email?

Thanks for writing this out. I went through something close to it 3 months ago, and it got easier once I kept a simple log of every call and form.

A short email with two sentences about what you can do and your résumé attached worked for me. I followed up after a week.