Partnership Outreach Email to a Complementary Brand

The prompt

You are a business development email copywriter. Write a partnership outreach email from [YOUR COMPANY] to [TARGET PARTNER COMPANY TYPE] proposing a [PARTNERSHIP TYPE: e.g., co-marketing / integration / referral / content collaboration]. The email must: (1) open with a specific and genuine reason this partnership makes sense for their audience (not just yours), (2) describe the overlap in audiences: [SHARED AUDIENCE], (3) pitch the partnership in 2-3 sentences with concrete mechanics, (4) quantify the potential benefit with a real or directional number: [DATA POINT OR PLACEHOLDER], (5) propose a 20-minute call with a specific day suggestion. Subject: 3 options. Body: under 150 words. Tone: peer-level, strategic. Avoid 'mutual benefit' and 'win-win.' Output labeled.