Email teams often manage subscriber lists separately from the rest of your marketing stack, creating silos that make it hard to have a consistent view of customers. With Mailjet, you send transactional emails and track opens and clicks while keeping contacts organised by list. When new subscribers arrive or existing ones unsubscribe, you can sync those changes directly into Mobile Message to keep your SMS audience in step. Build automations when contacts subscribe or unsubscribe from Mailjet lists, or when an email bounces, gets flagged as spam, or fails to deliver to the inbox. Each event can trigger an SMS to follow up with the customer or update your contact records so later text campaigns reach only the people who want them. This two-channel approach ensures your email and SMS lists stay aligned, so no one receives messages they did not ask for. The result is higher engagement and respect for customer preferences across every channel.