In my role as an email marketer, I develop and execute captivating email newsletter campaigns for clients. This involved several key steps: 

1. CONTENT STRATEGY AND AUDIENCE SEGMENTATION: I collaborate with the client to define the campaign goals and target audience. I segment the subscriber list based on demographics, interests, or other relevant criteria to ensure personalized and relevant content delivery. 

2. DESIGN AND DEVELOPMENT: I craft compelling email copy that resonates with the target audience and aligns with the campaign goals. I design visually appealing email templates, utilizing the brand's visual identity and ensuring optimal viewing experience across various devices. I implement strategic calls to action (CTAs) within the email to encourage desired audience behavior, such as visiting a website, making a purchase, or subscribing to a service. 

3. SENDING AND OPTIMIZATION: I schedule the email campaign for optimal delivery time based on audience data and industry best practices. I monitor the campaign performance metrics within Mailchimp, including open rates, click-through rates, and unsubscribes. I analyz the data to identify areas for improvement and implemented A/B testing to optimize future campaigns. 

By diligently following these steps, I will deliver a successful email newsletter campaign that will effectively engage the clients' audience and achieve the desired results.