Application Email & Cover Formatting

I have a cover letter written, but it still looks like a rough draft when dropped into an email. I need you to take that existing text and lay it out so it reads smoothly in the body of a job-board message and also looks crisp when attached as a PDF. The end goal is a reusable email template I can quickly personalize for each role, complete with a polished signature block, a concise subject line, and clear placement for the résumé attachment link.

What I already have: the final cover-letter wording.
What I need from you: professional formatting—nothing needs to be rewritten. Please focus on spacing, fonts, consistent styling, and any subtle tweaks that improve readability without altering my voice.

When we’re done, I should be able to copy-paste the email, swap in the hiring manager’s name and job title, and hit send with confidence that everything from the greeting to the closing looks clean on desktop and mobile. If you can supply the template in both HTML (for platforms that support it) and plain text, even better.

Let me know how you would approach the layout and, if relevant, which email-testing tools you’ll use to be sure the formatting holds across common clients such as Gmail and Outlook.