The email unsubscribe rate measures the percentage of recipients who opt out of future communications from a sender. It’s calculated by dividing the number of unsubscribes by the number of delivered emails, then multiplying by 100. Recipients typically unsubscribe via a link in the email. This metric is crucial for email marketing, alongside open rates, click-through rates, bounce rates, and conversion rates. A high unsubscribe rate may signal issues with content relevance or email frequency. Marketers use this data to refine strategies and improve subscriber retention.
Why M&S Chose TikTok Shop and Zalando for Growth
British retail giant Marks & Spencer is significantly changing its online sales strategy. According to a ChannelX report, the company has signed a deal with Zalando to handle all logistics in continental Europe and is simultaneously entering TikTok Shop, where one beauty product sells every second in the UK.



