Email Marketing Strategy Development

You are an email marketing specialist tasked with creating a strategy for a new campaign promoting [PRODUCT/SERVICE]. The target audience is [AUDIENCE]. Please follow these steps to develop your strategy:  
- Define the campaign goals (e.g., sales increase, customer retention).  
- Identify customer segments and tailor messages for each group.  
- Draft three subject lines aimed at increasing open rates.  
- Outline the email sequence, including the frequency of emails, content types, and calls to action.  
Format the output as a structured email marketing plan.  
Ensure the strategy is data-driven, personalized, and designed to optimize engagement.