I Analyzed 1,000 Professional Emails — Here Are the 5 Patterns That Get Replies

Last year I built RewriteEmail , a free AI tool that rewrites professional emails. After processing thousands of email rewrites, clear patterns emerged about why some emails get responses and others get ignored . This isn't theory — it's data from real users rewriting real emails. Here's what I found. 1. The First Sentence Determines Everything The pattern: Emails that opened with context ("Following up on our Tuesday call about the Q3 budget") had a dramatically different tone than emails that opened with filler ("I hope this email finds you well"). The fix: Delete your first sentence. Whatever your second sentence is — that's your real opener. We noticed that the AI almost always removed or restructured the first line of user drafts. ❌ "I hope you're doing well. I wanted to reach out regarding..." ✅ "Following up on your question about the API migration timeline —" The best first sentence answers: "Why am I reading this right now?" 2. One Ask Per Email — Always The pattern: Emails wi