List management and segmentation presented another significant challenge, given the sheer volume of cold and inactive contacts mixed with active ones. To overcome this, I meticulously segmented the email list into four distinct categories: cold leads, dormant leads, hot leads, and active contacts. This segmentation allowed for more precise targeting, ensuring that the right message reached the right audience, whether it was an engaging reintroduction for cold leads or a promotional push for active contacts. Additionally, I encountered technical issues with Mailchimp during the campaign, but by promptly contacting their support team, I was able to resolve the problem quickly and ensure the campaign continued without delay. These efforts collectively contributed to a successful re-engagement and promotional campaign for the client.