Email Composer

Write a professional email for the following situation:

**Purpose:** [cold outreach / follow-up / request / announcement / apology]
**Recipient:** [their role/relationship to you]
**Context:** [background information]
**Desired outcome:** [what action do you want them to take]
**Tone:** [formal / friendly-professional / casual]

Requirements:
- Subject line that gets opened (A/B test 3 options)
- Opening that's personal, not generic
- Clear and concise body (under 150 words)
- Specific call-to-action
- Professional sign-off

Provide 2 versions: concise and detailed.