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.
What’s Next for Balkan E-Commerce in 2026? Insights from Nikola Ilchev
Last year Nikola Ilchev, shared with us his long-term vision for building the Balkan Ecommerce Summit as a platform that connects the e-commerce community across the region. One year later, the summit continues to evolve – responding to new challenges, technological shifts, and changing priorities of online businesses. We spoke with Nikola about what the 2026 edition […]



